Rio Blanco (Colorado)

Rio Blanco
Physical characteristics
Source 
 • locationConejos County, Colorado
United States
 • coordinates37°18′43″N 106°40′06″W / 37.31194°N 106.66833°W / 37.31194; -106.66833
Mouth 
 • location
Confluence with San Juan
 • coordinates
37°07′16″N 107°02′37″W / 37.12111°N 107.04361°W / 37.12111; -107.04361
 • elevation
6,608 ft (2,014 m)
Basin features
ProgressionSan JuanColorado
Tributaries 
 • leftBenson Creek, Rio Blanco
 • rightSummit Creek, Hondo Creek, Oil Creek, Squaretop Creek

Rio Blanco is a stream that is a tributary of the San Juan River in southern Colorado, United States. The stream originates in the San Juan Mountains and flows for 30 miles (48 km) through the San Juan National Forest and private lands to its confluence with the San Juan River in Archuleta County, Colorado. Colorado classifies the Rio Blanco as an Aquatic Life Coldwater Class 1/Recreation Class 1 waterway supporting water supply and agricultural uses. The river also features native cutthroat trout and introduced rainbow trout fishing.