San Juan River
Fly fishing the San Juan River in Colorado means big water with brown trout, rainbows and smallmouth, easy in town at Pagosa Springs.
- 482 miRiver length
- 3Game fish
- 53Access points
In the FlyFishFinder appAbout the San Juan
The San Juan River in southwest Colorado starts in the mountains above Pagosa Springs and runs a long way west. It is a large river that can be floated or waded, and it can be hard to read for newer anglers. The stretch through Pagosa Springs is the most visited, and Colorado Parks and Wildlife notes public access to about two miles of stream through town.
Brown trout and rainbow trout are the main draw, and lower down smallmouth bass join the mix. The trout can be picky at times, so careful drifts and a quiet approach matter. Farther upstream, Forest Road 648 follows the river toward the West Fork area, and public access begins up there.
Spring is the season most people point to. Runoff changes the river quickly, so check flows. Midges, mayflies and classic nymph patterns like the Pheasant Tail work here, along with the San Juan Worm. The river's width means a drift boat or raft can reach water you cannot wade.
Mind private land along the river and stay on public stretches. Check the current Colorado Parks and Wildlife rules before you fish.
San Juan River at Four Corners, CO
Is the San Juan fishing today?
See today's top 10 rivers near you, free. Go Premium to score the San Juan, or any gage, on demand.
Nearby gages
- Chaco River near Shiprock, NM26.0 mi away Not reporting USGS 09367958
- Lost Canyon Creek near Dolores, CO37.4 mi away Not reporting USGS 09166950
- Dolores River at Dolores, CO37.7 mi away Not reporting USGS 09166500
- Chinle Creek near Mexican Water, AZ43.2 mi away Not reporting USGS 09379200
- Chinle Creek at mouth near Bluff, Utah43.5 mi away Not reporting USGS 09379250
- Animas River at Farmington, NM47.0 mi away Not reporting USGS 09364500
No gages that close. Try a wider radius.
See every gage on the map and today's top 10 rivers in the free appData from the U.S. Geological Survey. Recent readings are provisional and may be revised.
Fish you'll catch
Tap a fish to see every Colorado river that holds it.
Tips for fishing the San Juan
-
Start in Pagosa Springs
The public water through town is the easiest place to learn the river. Park, walk down and work the runs and pools.
-
Read the water in sections
A big river is easier when you break it into seams, riffles and pools. Fish one piece at a time.
-
Respect private land
Large parts of the river cross private property. Stay below the high water mark only where it is legal and look for public signs.
-
Expect picky trout
Long, light leaders and clean drifts help. If the fish ignore one fly, change the depth before you change the fly.
-
Use the app to find access
The FlyFishFinder app maps mapped access points and live gages along the San Juan so you know where you can legally get in.
Every access point on the San Juan, in your pocket.
- 53 mapped access points, with parking and put-ins
- Today's Fishability score, so you fish the day that lines up
- 7-day flow and water-temp trends for every gauge on the river
Rivers near the San Juan
San Juan River FAQ
When is the best time to fish the San Juan River in Colorado?
Spring is the season most anglers point to. Flows change quickly during runoff, so check the gage before you plan a trip.
Where can I fish the San Juan River near Pagosa Springs?
The public water through town is the easy choice. Colorado Parks and Wildlife notes about two miles of public stream there, and more access is available upstream toward the West Fork.
Can you wade the San Juan River in Colorado?
Yes, in many places, but the river is wide and can be fast. A raft or drift boat covers more water.
What flies work on the San Juan River in Colorado?
Pheasant Tails, midges and the San Juan Worm are classic here. The FlyFishFinder app shows what is hatching and working today.
What fish are in the San Juan River in Colorado?
Brown trout, rainbow trout and smallmouth bass.
Are there special rules on the San Juan River?
Rules and license needs vary by state and by section. The Colorado river is not the same as the New Mexico tailwater, so check current Colorado Parks and Wildlife regulations.
