Tech & Sources
Software
GDAL, PostgreSQL/PostGIS, MapServer, Apache
Languages
SQL, Bash
Data Sources (one or more):
U.S. Geological Survey (USGS), U.S. Forest Service (USFS), National Elevation Data (NED), National Land Cover Data(NLCD), National Hydrography Data (NHD), Tiger/Line Census, 3D Elevation Program (3DEP), Geographic Names Information Service (GNIS), Open Street Map (OSM), Protected Areas Database v2.1 (PAD), National Interagency Fire Center (NIFC), National Weather Service (NWS), NASA, NOAA, National Wildfire Coordinating Group (NWCG), AirNOW.gov, U.S. Department of Interior (DOI), National Digital Forecast Database (NDFD), European Space Agency (ESA), USAFacts.org, ESRI, Google, Continental Divide Trail Coalition, Appalachian Trail Conservancy (ATC), National Snow and Ice Data Center (NSIDC), PRISM Climate Data Oregon State University, et al, and data collected in the field (trail trace)
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Notes
Image: Near Trail Protected Areas Database v2.1, Fee
Script downloads PAD v2.1 vector data using wget and updates database. The WMS/WMTS layer is served by Apache/MapServer as defined by the pad layer, using one of the various padtypes.
WMS Resource:
https://gis.postholer.com/services/reflect?
layers=nlcdlite,pad,unpad,demshade,countylines,statelines,padLabels,trace,pop,milemarker
&trail_id=2
&t_srs=EPSG:3857
&width=1024
&bbox=-109.48,40.68,-104.60,42.45
&map.scalebar+STATUS+EMBED
&padtype=fee
Interactive map using WMTS:
https://www.postholer.com/google-map/Continental-Divide-Trail/2?
vw=6
&zoom=9
&lat=41.567787
&lon=-107.039627
&padFee=1
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