https://ecos.fws.gov/arcgis/rest/services

Stopped responding. No replacement found.

Also run by DOI - Fish and Wildlife Service

• https://www.fws.gov/wetlandsmapservice/rest/services
• https://ecos.fws.gov/rest/services
• https://criticalhabitat.fws.gov/arcgis/rest/services
• https://criticalhabitat.fws.gov/rest/services
• https://fwsprimary.wim.usgs.gov/server/rest/services
• https://gis1.wim.usgs.gov/server/rest/services
• https://fwspublicservices.wim.usgs.gov/wetlandsmapservice/rest/services
• https://cbrsgis.wim.usgs.gov/arcgis/rest/services
• https://services.arcgis.com/QVENGdaPbd4LUkLV/ArcGIS/rest/services
• https://tiles.arcgis.com/tiles/QVENGdaPbd4LUkLV/arcgis/rest/services