Our Waters

Coho Salmon Distribution

Map showing Coho salmon distribution in the Illinois River Watershed, detailing watershed boundaries and perennial streams.

Anadromous Fish Distribution

Map of the Illinois River Watershed showing anadromous fish distribution in various stream segments, with a legend for identification.

Land Ownership

Map of the Illinois River Watershed showing land ownership: BLM, National Monument, private, state/county, and USFS National Forest areas.

Subwatersheds of the Illinois River Basin

Map showing the subwatersheds of the Illinois River Basin, with various areas labeled and sizes in acres.

Water Temperature Limited Streams

Map of water temperature limited streams in the Illinois River watershed, showing stream names and subwatershed boundaries.