San Juan River Flow at Navajo Dam
Current CFS for Fly Fishing

The San Juan River below Navajo Dam typically flows at a steady 300 to 500 CFS throughout much of the year, making it one of the most reliable tailwaters in the West. These consistent flows support a healthy aquatic ecosystem and create ideal conditions for fly fishing. During spring runoff or special water management events, flows can rise significantly, occasionally exceeding 1,000 CFS, which may impact wading access or fishing strategy. Checking current CFS levels helps anglers plan their day and understand how the river is fishing — whether you're wading the upper flats or floating deeper runs downstream.