Oregon · Minam, OR
Grande Ronde River float season
Gauge 13333000 on the Minam to Troy. A pine-and-basalt wilderness conveyor from Minam to Troy that turns a spring weekend into a proper multi-day expedition.
Right now at this gauge
loading CFS
Checking the live gauge…
Well above typical for this date
Live reading from the USGS gauge page for Grande Ronde River. Provisional data — subject to revision.
The year on this river
In a typical year at the Minam gauge, the Grande Ronde River runs fullest Apr–Jun and leanest Aug–Oct. Where today's reading falls inside that rhythm matters more than the raw number — the same flow that feels thin in spring can be the summer norm. Half of all past May days at this gauge ran above 6,750 CFS; the September median is 687 CFS.
| Month | Typical flow (CFS) | Relative volume |
|---|---|---|
| January | 1,490 | |
| February | 2,160 | |
| March | 3,780 | |
| April | 5,850 | |
| May | 6,750 | |
| June | 5,155 | |
| July | 1,680 | |
| August | 708 | |
| September | 687 | |
| October | 782 | |
| November | 971 | |
| December | 1,180 |
Record context
This gauge has measured daily flow since 1945 — 81 years of record. The largest daily average ever logged here was 42,200 CFS, in February 1996. Rivers do that sometimes; it's why the safety panel above isn't decoration.
Planning dates? The trip-window checker shows what flows have historically looked like on any week you pick for this river, or see what a CFS actually looks like.
More Oregon float rivers
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Clackamas River
Milo McIver Park to Barton and Carver
Fullest: Mar–May
-
Deschutes River
Riverbend Park through the Bend Whitewater Park to Drake Park
Fullest: Jun–Aug
-
Deschutes River
Warm Springs to Sherars Falls through Maupin
Fullest: Feb–Apr
-
John Day River
Service Creek to Clarno
Fullest: Mar–May
-
McKenzie River
Finn Rock through Vida to Leaburg
Fullest: Dec–Feb
-
North Santiam River
Packsaddle Park through Mill City to Mehama
Fullest: Nov–Jan
Common questions
When is the Grande Ronde River usually at its fullest?
At the Minam gauge, the fullest stretch of a typical year is Apr–Jun, with the single highest monthly median in May (about 6,750 CFS). The leanest months are usually Aug–Oct.
What is a typical summer flow on the Grande Ronde River?
The July median at this gauge is about 1,680 CFS — half of past Julys ran higher, half lower. Late summer is this river's lean season, so expect readings to drift down as the season goes on.
Is the Grande Ronde River safe to float right now?
No flow number can answer that, and this site never labels a river safe. What the data can tell you is how today's reading compares with 82 years of this date's history — well above typical means pushier, colder, faster water. Pair that context with a PFD, a look at the river from the bank, and a call to a local outfitter before you commit.
Which USGS gauge does this page use?
USGS gauge 13333000 (GRANDE RONDE RIVER AT TROY, OR), chosen because it best represents the Minam to Troy. Daily records here reach back to 1945.
Data: USGS gauge 13333000, approved daily records 1945–2026, retrieved 2026-08-07. Live readings are provisional and subject to revision. U.S. Geological Survey data is public domain.