Home / Rivers / San Juan River
383 miles

San Juan River

Leaves the San Juan Mountains past Pagosa Springs into Navajo Lake, then crosses northern New Mexico through Farmington and Shiprock before winding through deep Utah canyons near Bluff and Mexican Hat into Lake Powell.

N50 mi
Course of the river, simplified. Map data from Natural Earth (public domain).

Weather at the San Juan River (National Weather Service) ↗

River facts

Length383 miles
SourceEast and West Forks, San Juan Mountains, Archuleta County, Colorado
MouthColorado River (Lake Powell), San Juan County, Utah
StatesColorado, New Mexico, Utah

Navajo Dam forms Navajo Lake; Glen Canyon Dam's Lake Powell floods the lower river.

Boat ramps, launches and bait shops

Detailed ramp, bait shop and lock-and-dam listings for the San Juan River are coming soon. Until then, these searches open Google Maps along the river:

Fishing regulations

Check the state agency for river-specific rules, seasons and limits before you fish:

Lakes on or near the San Juan River

Lakes in our guide on or near this river:

Facts from San Juan River (Wikipedia) ↗

← Colorado rivers · All rivers

View on interactive map

Zoom and pan on a street, satellite or terrain map to follow the river past roads and towns. Boat ramps, bait shops and locks will be added to this map.