31:Tb6e,berkshire_map = { const container = html`

`; yield container; // Initial View let map = L.map(container).setView([42.3824162, -73.2380902], 10); // Default Tile Layers [Basemap] let osmLayer = L.tileLayer( 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { attribution: '© OpenStreetMap contributors' } ).addTo(map); // Additional Tile Layers [Basemaps] let world_imagry = L.tileLayer( 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', { attribution: 'Tiles © Esri — Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community', maxZoom: 17 } ); let world_topo = L.tileLayer( 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}', { attribution: 'Tiles © Esri — Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community', maxZoom: 17 } ); // Base Layers [Basemap Selection] - We need at least one. let baseLayers = { "Open Street Maps": osmLayer, "World Imagery": world_imagry, "World Topo Map": world_topo }; // Control Layers [Show/Hide Features] let controlLayers = { "Areas of Concen": acecs_poly, "Species of Concern": BM2_CH_SPECIES_CONS_CONCERN, "Rare Wildlife Habitats": ESTHAB_POLY, "Estimated Rare Habitat": PRIHAB_POLY, "Priority Communities": BM2_CH_PRIORITY_NATURAL_COMMS, "Natural Communities": NATCOMM_POLY, "Forest Core": BM2_CH_FOREST_CORE, "Aquatic Core": BM2_CH_AQUATIC_CORE, "Aquatic Buffer": BM2_CH_AQUATIC_BUFFER, "Wetlands Core": BM2_CH_BIOMAP2_WETLANDS, "Wetlands Buffer": BM2_CNL_WETLAND_BUFFER, "Vernal Pools": BM2_CH_VERNAL_POOL_CORE }; let control_layers = new L.control.layers(baseLayers, controlLayers, { position: 'topright', collapsed: false }); map.addLayer(world_imagry); map.addControl(control_layers); // Data Layers // Note: I am varying the order of datalayers compared to their presentation of control layers. // I do this mostly in the attempt to get orders to load / stack in a certain way // Leaflet has some means for controling layer order, not implemented here. towns.addTo(map); acecs_poly.addTo(map); BM2_CH_FOREST_CORE.addTo(map); BM2_CH_AQUATIC_CORE.addTo(map); BM2_CH_AQUATIC_BUFFER.addTo(map); BM2_CH_BIOMAP2_WETLANDS.addTo(map); BM2_CNL_WETLAND_BUFFER.addTo(map); BM2_CH_SPECIES_CONS_CONCERN.addTo(map); BM2_CH_PRIORITY_NATURAL_COMMS.addTo(map); BM2_CH_VERNAL_POOL_CORE.addTo(map); ESTHAB_POLY.addTo(map); PRIHAB_POLY.addTo(map); NATCOMM_POLY.addTo(map); }32:T672,md` [**BioMap**](https://www.mass.gov/info-details/massgis-data-biomap-the-future-of-conservation) BioMap2 was published in 2010 as a conservation plan to protect the state’s biodiversity over the next decade by focusing land protection and stewardship on the areas that are most critical for ensuring the long-term persistence of rare and other native species and their habitats, exemplary natural communities, and a diversity of ecosystems. BioMap2 is also designed to include the habitats and species of conservation concern identified in the State Wildlife Action Plan. BioMap2 is comprised of two main components, each of which is further disagregated into areas of focus: 1. _Core Habitats_ identifies specific areas necessary to promote the long-term persistence of Species of Conservation Concern (those listed under the Massachusetts Endangered Species Act as well as additional species identified in the State Wildlife Action Plan), exemplary natural communities, and intact ecosystems. 2. _Critical Natural Landscapes_ was created to identify and prioritize intact landscapes in Massachusetts that are better able to support ecological processes and disturbance regimes, and a wide array of species and habitats over long time frames. This maps loads in a selection of sub-components of particular interest for Berkshire County. Please refer to the [BioMap details page](https://www.mass.gov/info-details/massgis-data-biomap-the-future-of-conservation) for a complete listing. MassGIS also has [an interactive map of this dataset](https://gis.eea.mass.gov/portal/apps/webappviewer/index.html?id=e2b6c291e0294c3281488621aaa095bf). `33:[{"id":"237307c0b09571da8240e0427e54d9d0ba4051f9bd22458253c0514799aa13798df4e8ab3f1a6cce2c30333cfca1a3c12f4d6b2c2e18b222fd80287bdc39b16c","href":"https://static.observableusercontent.com/files/237307c0b09571da8240e0427e54d9d0ba4051f9bd22458253c0514799aa13798df4e8ab3f1a6cce2c30333cfca1a3c12f4d6b2c2e18b222fd80287bdc39b16c","name":"berkshires_NATCOMM_POLY.geojson","type":"application/geo+json","lastModified":1612217619374.01,"size":1344447},{"id":"d868c0a4e4b2c3ab4b20c69e95bf19ab299016e3293337d2825201f45de0c27aa38b7365b8bbb7db129db9d995820bc8ced430d51bc6c84f967c2d4ba0a567a5","href":"https://static.observableusercontent.com/files/d868c0a4e4b2c3ab4b20c69e95bf19ab299016e3293337d2825201f45de0c27aa38b7365b8bbb7db129db9d995820bc8ced430d51bc6c84f967c2d4ba0a567a5","name":"berkshires_acecs_poly.geojson","type":"application/geo+json","lastModified":1612217601377.591,"size":284185},{"id":"f0520037b013328805328b811849e2da97dc96f36f3cbc80c78f9a1ea53838c98f4c1651e098015662855261f84f4f8b4ec019e0ea8aaa5f40b9361f4045d559","href":"https://static.observableusercontent.com/files/f0520037b013328805328b811849e2da97dc96f36f3cbc80c78f9a1ea53838c98f4c1651e098015662855261f84f4f8b4ec019e0ea8aaa5f40b9361f4045d559","name":"berkshires_BM2_CH_FOREST_CORE-wgs84.geojson","type":"application/geo+json","lastModified":1612208075225.891,"size":1893970},{"id":"883d2d9eed898163192cf12c739de67e5601c3ee3076d4d5ec6c3374bcc093693f981a9ba656b6d28718023ccc65ac012aeddb14e74923407f363ae83a3dad61","href":"https://static.observableusercontent.com/files/883d2d9eed898163192cf12c739de67e5601c3ee3076d4d5ec6c3374bcc093693f981a9ba656b6d28718023ccc65ac012aeddb14e74923407f363ae83a3dad61","name":"berkshires_BM2_CH_AQUATIC_CORE_wgs84.geojson","type":"application/geo+json","lastModified":1612207172997.032,"size":9662740},{"id":"b9400962494e28bc089ec7bc0b6078c2d99568635242cd7dc37e535a0497654ce2d1d41c12fced1ad0b3682d9be78d28462a17ea815fae86078cb86a64f9e601","href":"https://static.observableusercontent.com/files/b9400962494e28bc089ec7bc0b6078c2d99568635242cd7dc37e535a0497654ce2d1d41c12fced1ad0b3682d9be78d28462a17ea815fae86078cb86a64f9e601","name":"berkshires_BM2_CNL_WETLAND_BUFFER.geojson","type":"application/geo+json","lastModified":1612072417065.592,"size":11806508},{"id":"9bf1142da5c029d0917cbc39653e2d5351a2dfe59a9b9b135c9ff59ff08869b6a3cf5b0086895ca68c791d2c7e42fc63928ec18717a80a72327543e9fdecfa2d","href":"https://static.observableusercontent.com/files/9bf1142da5c029d0917cbc39653e2d5351a2dfe59a9b9b135c9ff59ff08869b6a3cf5b0086895ca68c791d2c7e42fc63928ec18717a80a72327543e9fdecfa2d","name":"berkshires_BM2_CORE_HABITAT.geojson","type":"application/geo+json","lastModified":1612072386500.185,"size":9977461},{"id":"0c0aa208d0977d1ab88074822f673179ddc4354dfd56c38e89fa98f77d245736af7032cbc4ad06e9cb1acaa4310641f64d7ac8f0a70aef532d64430baf5791f2","href":"https://static.observableusercontent.com/files/0c0aa208d0977d1ab88074822f673179ddc4354dfd56c38e89fa98f77d245736af7032cbc4ad06e9cb1acaa4310641f64d7ac8f0a70aef532d64430baf5791f2","name":"berkshires_BM2_CH_BIOMAP2_WETLANDS.geojson","type":"application/geo+json","lastModified":1612072226990.57,"size":5884320},{"id":"7f05cd9fb01b0e8870d06428f63c6c9e5cdde04842da109bc3a611a77010c65a8adf488db661e0ab273b8532135eb91a9b99c1fc320c121eb895a7f735132380","href":"https://static.observableusercontent.com/files/7f05cd9fb01b0e8870d06428f63c6c9e5cdde04842da109bc3a611a77010c65a8adf488db661e0ab273b8532135eb91a9b99c1fc320c121eb895a7f735132380","name":"berkshires_ESTHAB_POLY.geojson","type":"application/geo+json","lastModified":1612268763194.613,"size":4146004},{"id":"1d4ed84e49a37641559a6d39b71d558e635b5e6b31dd40cef5c0e9248960c343d08074bab637c71c1553f74e9cbeb1389024df0bf46fdf56a73281eabb8b2a01","href":"https://static.observableusercontent.com/files/1d4ed84e49a37641559a6d39b71d558e635b5e6b31dd40cef5c0e9248960c343d08074bab637c71c1553f74e9cbeb1389024df0bf46fdf56a73281eabb8b2a01","name":"berkshires_BM2_CNL_AQUATIC_BUFFER_simplified.geojson","type":"application/geo+json","lastModified":1612219314265.808,"size":2478604},{"id":"2533cd4f2759dd42860b758a6301edfcfc660fe41016aa6a020113a830d18bfaae539d11a2198003a668e12978c28c3a95569556ef3f4d6db4f02104fcaed5ed","href":"https://static.observableusercontent.com/files/2533cd4f2759dd42860b758a6301edfcfc660fe41016aa6a020113a830d18bfaae539d11a2198003a668e12978c28c3a95569556ef3f4d6db4f02104fcaed5ed","name":"berkshires_BM2_CH_SPECIES_CONS_CONCERN.geojson","type":"application/geo+json","lastModified":1612219075044.522,"size":4390152},{"id":"086f6ce553f2a4ad323d11d635144908b2df3aff267d4d302d2197fa0ed34ee91a477a25cc25146a76e499a472ff82a4a709b824c9f2301b11769e103b28e264","href":"https://static.observableusercontent.com/files/086f6ce553f2a4ad323d11d635144908b2df3aff267d4d302d2197fa0ed34ee91a477a25cc25146a76e499a472ff82a4a709b824c9f2301b11769e103b28e264","name":"berkshires_BM2_CH_PRIORITY_NATURAL_COMMS.geojson","type":"application/geo+json","lastModified":1612218693238.163,"size":896189},{"id":"0e778944365cac3661829355003d8f3275daf255e0461af0dca1f5d941d25b8a7fcd98ea676e970139e6626f2131b3d53742e7197169b422333a3b5cc6e017aa","href":"https://static.observableusercontent.com/files/0e778944365cac3661829355003d8f3275daf255e0461af0dca1f5d941d25b8a7fcd98ea676e970139e6626f2131b3d53742e7197169b422333a3b5cc6e017aa","name":"berkshires_BM2_CH_VERNAL_POOL_CORE.geojson","type":"application/geo+json","lastModified":1612218684799.712,"size":78909},{"id":"f14935e07666cdbf7adc4809ddff551d734f4f37385d0606bed08b39246cb67b884aa5bdd114caed2249296924978e5bc40c7166c3cc2367e5ae94d6bdf77ed9","href":"https://static.observableusercontent.com/files/f14935e07666cdbf7adc4809ddff551d734f4f37385d0606bed08b39246cb67b884aa5bdd114caed2249296924978e5bc40c7166c3cc2367e5ae94d6bdf77ed9","name":"berkshires_PRIHAB_POLY.geojson","type":"application/geo+json","lastModified":1612217663787.986,"size":5728540},{"id":"b3074275939e0586627e788e2c0bedf33d3394d3f078cd83d2201f7e73709e7101f759bdc86a8142dd29ea48938032d772487ea1c4e1151e13c2740d436e0550","href":"https://static.observableusercontent.com/files/b3074275939e0586627e788e2c0bedf33d3394d3f078cd83d2201f7e73709e7101f759bdc86a8142dd29ea48938032d772487ea1c4e1151e13c2740d436e0550","name":"berkshires_BM2_CRITICAL_NATURAL_LANDSCAPE.geojson","type":"application/geo+json","lastModified":1612071960588.258,"size":1480525}] 2f:{"title":"Mapping the Berkshires | Environmental Conservation Areas","cells":[{"id":0,"value":"md`\n# Mapping the Berkshires
| Environmental Conservation Areas\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":1712,"value":"**Originally published Feb. 2, 2021.**","pinned":false,"hidden":false,"mode":"md"},{"id":253,"value":"md`\nThe Commonwealth of Massachusetts Bureau of Geographic Information ([MassGIS](https://www.mass.gov/orgs/massgis-bureau-of-geographic-information)) maintains an extensive, statewide database of spatial information for mapping and analysis supporting emergency response, environmental planning and management, transportation planning, economic development, and transparency in state government operations.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":591,"value":"md`\nThis map reproduces some of the MassGIS [datalayers](https://docs.digital.mass.gov/dataset/massgis-data-layers) of relevance to environmental conservation, focusing on Berkshire County.\n\nIf you're interested to further explore state-level information, check out the [MassGIS webpage](https://www.mass.gov/orgs/massgis-bureau-of-geographic-information) and their [beautiful interactive BioMap2](http://maps.massgis.state.ma.us/dfg/biomap2.htm), which shows data for the entire Commonwealth.\n\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":459,"value":"md`\n---\n\n**Note:**
This notebook uses your browser to load in over a dozen spatial data layers. It will take some time to render the map. Please be patient.\n\n---\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":618,"value":"md`\nOnce this map has loaded, you can view additional information by clicking different areas on the map. Toggling layers on and off may help you to navigate and focus on information:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":7,"value":"$31","pinned":false,"hidden":false,"mode":"ojs"},{"id":319,"value":"md`\n---\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":316,"value":"md`## Making This Map`","pinned":false,"hidden":false,"mode":"ojs"},{"id":15,"value":"md`\n---\n\n#### Spatial Data\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":354,"value":"md`\nInformation on town borders used for this map were sourced from the [Massachusetts Document Repository](https://web.archive.org/web/20180920101102/https://docs.digital.mass.gov/dataset/massgis-data-community-boundaries-towns), a state pilot project aimed at sharing information with the public. These data are now superseded by [MassGIS Municipalities data layer](https://www.mass.gov/info-details/massgis-data-municipalities).\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":14,"value":"berkshire_towns =(await fetch('https://s3.amazonaws.com/berkshire.guide/maps/berkshire_towns.geojson')).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":342,"value":"md`\n[**Areas of Critical Environmental Concern**](https://www.mass.gov/info-details/massgis-data-areas-of-critical-environmental-concern)\n\nAreas of Critical Environmental Concern are places in Massachusetts that receive special recognition because of the quality, uniqueness and significance of their natural and cultural resources.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":381,"value":"berkshires_acecs_poly = FileAttachment(\"berkshires_acecs_poly.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":344,"value":"$32","pinned":false,"hidden":false,"mode":"ojs"},{"id":70,"value":"berkshires_BM2_CORE_HABITAT = FileAttachment(\n \"berkshires_BM2_CORE_HABITAT.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":99,"value":"berkshires_BM2_CRITICAL_NATURAL_LANDSCAPE = FileAttachment(\"berkshires_BM2_CRITICAL_NATURAL_LANDSCAPE.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":357,"value":"md`\n - Forest Core\n\nBioMap2 Forest Core identifies the best examples of large, intact forests that are least impacted by roads and development, providing critical habitat for numerous woodland species.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":97,"value":"berkshires_BM2_CH_FOREST_CORE = FileAttachment(\n \"berkshires_BM2_CH_FOREST_CORE-wgs84.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":364,"value":"md`\n - Aquatic Core & Buffer\n\nBioMap2 Aquatic Core contains integrated and functional ecosystems for fish species and other aquatic Species of Conservation Concern.\n\nThe Aquatic Buffer identifies upland habitat adjacent to each Aquatic Core.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":49,"value":"berkshires_BM2_CH_AQUATIC_CORE = FileAttachment(\"berkshires_BM2_CH_AQUATIC_CORE_wgs84.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":397,"value":"berkshires_BM2_CNL_AQUATIC_BUFFER = FileAttachment(\n \"berkshires_BM2_CNL_AQUATIC_BUFFER_simplified.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":359,"value":"md`\n - Wetlands & Buffer\n\nBioMap2 Wetlands identifies important wetland habitat in Massachusetts. It is a combination of the Wetland Core analysis that identified the most intact wetlands in Massachusetts, the wetlands present within the Priority Natural Communities data layer, and several Oxbows identified as important wetland habitat. A more detailed description of the Wetland Core analysis is present in the summary document. Wetland Cores and Priority Natural Community wetlands sometimes overlap.\n\nThe Wetland Buffer identifies upland habitat adjacent to each of the wetlands.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":94,"value":"berkshires_BM2_CH_BIOMAP2_WETLANDS = FileAttachment(\"berkshires_BM2_CH_BIOMAP2_WETLANDS.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":28,"value":"berkshires_BM2_CNL_WETLAND_BUFFER = FileAttachment(\"berkshires_BM2_CNL_WETLAND_BUFFER.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":393,"value":"md`\n - Species of Conservation Concern\n\nThis layer contains the combined BioMap2 footprint of all species listed under the Massachusetts Endangered Species Act in combination with all non-listed species present in the State Wildlife Action Plan that were mapped. Individual species information is not identified in this layer.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":400,"value":"berkshires_BM2_CH_SPECIES_CONS_CONCERN = FileAttachment(\n \"berkshires_BM2_CH_SPECIES_CONS_CONCERN.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":390,"value":"md`\n - Priority Natural Communities\n\nThe BioMap2 Priority Natural Communities data set is maintained by the Massachusetts Natural Heritage and Endangered Species Program (NHESP). The NHESP Natural Communities datalayer representa the extent of various natural communities of biodiversity conservation interest in Massachusetts.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":402,"value":"berkshires_BM2_CH_PRIORITY_NATURAL_COMMS = FileAttachment(\n \"berkshires_BM2_CH_PRIORITY_NATURAL_COMMS.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":388,"value":"md`\n - Vernal Pool Core\n\nThe BioMap2 team used a GIS model developed by the University of Massachusetts Landscape Ecology Program to identify the top 5 percent most interconnected clusters of Potential Vernal Pools within each ecoregion.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":404,"value":"berkshires_BM2_CH_VERNAL_POOL_CORE = FileAttachment(\n \"berkshires_BM2_CH_VERNAL_POOL_CORE.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":346,"value":"md`\n[**NHESP Priority Habitats of Rare Species**](https://www.mass.gov/info-details/massgis-data-nhesp-priority-habitats-of-rare-species)\n\nThe Priority Habitats of Rare Species datalayer represents the geographic extent of Habitat of state-listed rare species in Massachusetts based on observations documented within the last 25 years in the database of the Natural Heritage & Endangered Species Program (NHESP).\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":380,"value":"berkshires_PRIHAB_POLY = FileAttachment(\"berkshires_PRIHAB_POLY.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":348,"value":"md`\n[**NHESP Estimated Habitats of Rare Wildlife**](https://www.mass.gov/info-details/massgis-data-nhesp-estimated-habitats-of-rare-wildlife)\n\nThe Estimated Habitats of Rare Wildlife datalayer contains a subset of the Priority Habitats of Rare Species for use with the Wetlands Protection Act regulations (310 CMR 10.00). They are based on occurrences of rare wetland wildlife observed within the last 25 years and documented in the NHESP database. They do not include those areas delineated as Priority Habitat for rare plants or for rare wildlife with strictly upland habitat requirements.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":527,"value":"berkshires_ESTHAB_POLY = FileAttachment(\"berkshires_ESTHAB_POLY.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":350,"value":"md`\n[**NHESP Natural Communities**](https://www.mass.gov/info-details/massgis-data-nhesp-natural-communities)\n\nThe NHESP Natural Communities datalayer represents the extent of various natural communities of biodiversity conservation interest in Massachusetts. These polygons are based on records of natural communities maintained in the Natural Heritage & Endangered Species Program (NHESP) database.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":375,"value":"berkshires_NATCOMM_POLY = FileAttachment(\n \"berkshires_NATCOMM_POLY.geojson\"\n).json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":323,"value":"md`\n---\n\n#### Leaflet\n\nAs indicated by the forking information shown at the top of this notebook, the foundations for this map were [created and shared](https://observablehq.com/@mbostock/hello-leaflet) by [Mike Bostock](https://observablehq.com/@mbostock). One particular advantage of Mike's approach is that it bundles together the Leaflet JavaScript and CSS files, which is helpful when [importing](https://observablehq.com/@observablehq/introduction-to-imports).\n\nThis is all there is to it:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":5,"value":"L = {\n // This map uses ESRI basemaps, which require a plug-in.\n const L = await require(\"leaflet@1/dist/leaflet.js\", 'https://unpkg.com/esri-leaflet@2.5.3');\n if (!L._style) {\n const href = await require.resolve(\"leaflet@1/dist/leaflet.css\");\n document.head.appendChild(\n (L._style = html``)\n );\n }\n return L;\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":331,"value":"md`\nIf you're interested to [compare different approaches](https://observablehq.com/@tmcw/leaflet), also check out [this notebook](https://observablehq.com/@tmcw/leaflet) by [Tom MacWright](https://observablehq.com/@tmcw).\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":197,"value":"md`\n---\n\n#### Layer Styling\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":333,"value":"md`\nWith Leaflet loaded into my notebook, my only remaining tasks were to gather and render out some data. The code below styles each feature layer used in the map:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":18,"value":"towns = L.geoJson(await berkshire_towns, {\n color: \"yellow\",\n weight: 2, \n opacity: 0.5,\n fillColor: \"none\",\n fillOpacity: 0.5,\n pointToLayer: function(feature, latlng) {\n return L.circleMarker(latlng)\n },\n onEachFeature: towns_popup, // this doesn't work well, b/c it is only triggered on the polygoin outline, \n // not the area within\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":19,"value":"towns_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\"

\" + feature.properties['TOWN'] + \"

\");\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":481,"value":"acecs_poly = L.geoJson(await berkshires_acecs_poly, {\n weight: 1,\n color: \"#EE4031\",\n onEachFeature: acecs_poly_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":484,"value":"acecs_poly_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\"

\" + feature.properties['NAME'] + \"

\");\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":60,"value":"BM2_CH_AQUATIC_CORE = L.geoJson(await berkshires_BM2_CH_AQUATIC_CORE, {\n weight: 1,\n color: \"#0C60F6\",\n onEachFeature: BM2_CH_AQUATIC_CORE_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":54,"value":"BM2_CH_AQUATIC_CORE_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_AC_ID: \" +\n feature.properties['CH_AC_ID'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":570,"value":"BM2_CH_AQUATIC_BUFFER = L.geoJson(await berkshires_BM2_CNL_AQUATIC_BUFFER, {\n weight: 1,\n color: \"#0C60F6\", // use texture fill\n onEachFeature: BM2_CH_AQUATIC_BUFFER_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":572,"value":"BM2_CH_AQUATIC_BUFFER_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CNL_AB_ID: \" +\n feature.properties['CNL_AB_ID'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":117,"value":"BM2_CH_BIOMAP2_WETLANDS = L.geoJson(await berkshires_BM2_CH_BIOMAP2_WETLANDS, {\n weight: 1,\n color: \"#21BEDA\",\n onEachFeature: BM2_CH_BIOMAP2_WETLANDS_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":114,"value":"BM2_CH_BIOMAP2_WETLANDS_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_WET_ID: \" +\n feature.properties['CH_WET_ID'] +\n \"
\" +\n feature.properties['DESCRIP'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":22,"value":"BM2_CNL_WETLAND_BUFFER = L.geoJson(await berkshires_BM2_CNL_WETLAND_BUFFER, {\n weight: 1,\n color: \"#21BEDA\", // add texture fill\n onEachFeature: BM2_CNL_WETLAND_BUFFER_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":25,"value":"BM2_CNL_WETLAND_BUFFER_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CNL_WB_ID: \" +\n feature.properties['CNL_WB_ID'] +\n \"
\" +\n feature.properties['DESCRIP'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":142,"value":"BM2_CH_FOREST_CORE = L.geoJson(await berkshires_BM2_CH_FOREST_CORE, {\n weight: 1,\n color: \"#236B03\",\n onEachFeature: BM2_CH_FOREST_CORE_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":129,"value":"BM2_CH_FOREST_CORE_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_FC_ID: \" +\n feature.properties['CH_FC_ID'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":555,"value":"BM2_CH_SPECIES_CONS_CONCERN = L.geoJson(\n await berkshires_BM2_CH_SPECIES_CONS_CONCERN,\n {\n weight: 1,\n color: \"#ECA71C\",\n onEachFeature: BM2_CH_SPECIES_CONS_CONCERN_popup\n }\n)","pinned":false,"hidden":false,"mode":"ojs"},{"id":559,"value":"BM2_CH_SPECIES_CONS_CONCERN_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_SOCC_ID: \" +\n feature.properties['CH_SOCC_ID'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":447,"value":"BM2_CH_PRIORITY_NATURAL_COMMS = L.geoJson(\n await berkshires_BM2_CH_PRIORITY_NATURAL_COMMS,\n {\n weight: 1,\n color: \"#D68D04\",\n onEachFeature: BM2_CH_PRIORITY_NATURAL_COMMS_popup\n }\n)","pinned":false,"hidden":false,"mode":"ojs"},{"id":452,"value":"BM2_CH_PRIORITY_NATURAL_COMMS_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_PNC_ID: \" +\n feature.properties['CH_PNC_ID'] +\n \"
\" +\n feature.properties['PNC_TYPE'] +\n \"
\" +\n feature.properties['TYPE_DESC'] +\n \"
\" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":429,"value":"BM2_CH_VERNAL_POOL_CORE = L.geoJson(await berkshires_BM2_CH_VERNAL_POOL_CORE, {\n weight: 1,\n color: \"orange\",\n onEachFeature: BM2_CH_VERNAL_POOL_CORE_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":433,"value":"BM2_CH_VERNAL_POOL_CORE_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"CH_VPC_ID: \" +\n feature.properties['CH_VPC_ID'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":417,"value":"PRIHAB_POLY = L.geoJson(await berkshires_PRIHAB_POLY, {\n weight: 1,\n color: \"green\",\n onEachFeature: PRIHAB_POLY_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":422,"value":"PRIHAB_POLY_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"PRIHAB_ID: \" +\n feature.properties['PRIHAB_ID'] +\n \"
\" +\n \"Version: \" +\n feature.properties['VERSION'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":528,"value":"ESTHAB_POLY = L.geoJson(await berkshires_ESTHAB_POLY, {\n weight: 1,\n color: \"green\",\n onEachFeature: ESTHAB_POLY_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":532,"value":"ESTHAB_POLY_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n \"ESTHAB_ID: \" +\n feature.properties['ESTHAB_ID'] +\n \"
\" +\n \"Version: \" +\n feature.properties['VERSION'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":406,"value":"NATCOMM_POLY = L.geoJson(await berkshires_NATCOMM_POLY, {\n weight: 1,\n color: \"green\",\n onEachFeature: NATCOMM_POLY_popup\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":409,"value":"NATCOMM_POLY_popup = function(feature, layer) {\n if (feature.properties) {\n layer.bindPopup(\n \"

\" +\n feature.properties['COMMUN_NAM'] +\n \"
\" +\n feature.properties['SPECIFIC_D'] +\n \"
\" +\n feature.properties['COMMUN_DES'] +\n \"
\" +\n \"Town: \" +\n feature.properties['TOWN'] +\n \"

\"\n );\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":621,"value":"md`\n---\n`","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W33","stdlib":"1","titling":"auto"}