Welcome to launch. We are currently expanding our databases quickly — user input and corrections are needed and appreciated. The content and functions on this site are deep. If you find something that is out of order, please let us know.
Washington · Unknown Co.

Sultan River

· 16 mi · Class
Optimal: 400–1150 CFS · USGS #12138160
⚠50°F — Cold water immersion risk — review cold water safety before launching
778 avg
1,030CFS
6.51 ft gauge height
Optimal
↑Rising slowly (+10 cfs/hr)(+539 in 3h)
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 778 cfsHist. median: 0 cfsUSGS #12138160
Private

About

Sultan River runs 16 miles through private sections designated simply as Upper and Lower Sultan. At 778 CFS average flow with an optimal range of 400–1150 CFS, the river maintains consistent paddling conditions through most of the season. USGS gauge 12138160 provides current flow data for trip planning.

Solunar Fishing Activity
🌒
Waxing Crescent
15% illumination
Poor
★ Moon overhead
11:44 AM
Moonrise
3:42 PM
Moonset
7:46 AM
★ Moon underfoot
11:44 PM
Next full moon: May 3111 days
10-Year Flow Patterns
See 10 years of flow patterns for this river — historical analysis is a Pro feature.Upgrade to Pro →
Your Optimal Range
Set your personal optimal CFS window per river — custom ranges are a Pro feature.Upgrade to Pro →
Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

Know the Sultan River? Your local knowledge makes this page better for every paddler, angler, and guide who comes after you.
Improve This River →