These data identify, in general, the areas of Final critical habitat for Euphydryas editha quino (Quino checkerspot butterfly). This species is listed as an endangered species...

These data identify, in general, the areas where the final revised critical habitat for the Peninsular bighorn sheep ( Ovis canadensis nelsoni ) occurs. This subspecies is only...

The Northern California Distinct Population Unit (DPU) of Steelhead Trout ( Oncorhynchus mykiss) is a threatened species. This distinct population segment, or DPS, includes...

The Southern Oregon/Northern California Evolutionary Significant Unit (SONCC ESU) of Coho Salmon was listed as threatened under the ESA on May 6, 1997. National Marine Fisheries...

This data layer depicts lands designated as critical habitat under section 4 of the Endangered Species Act for the Marbled Murrelet in California. Critical habitat is the...

The California Coastal Chinook salmon ( Oncorhynchus tshawytscha) is a threatened species. This evolutionarily significant unit, or ESU, includes naturally spawned Chinook...