Grande Ronde River river
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Grande Ronde River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Grande Ronde River
All 1 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Grande Ronde River At Troy
OR
USGS 13333000
|
2,170 | 5.38 | 5.9 | 32% | 354 | 30,600 | 1,593 |
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Grande Ronde River
The Grande Ronde River is a tributary of the Snake River, located in the northeastern part of Oregon. It is approximately 182 miles long and has a drainage area of 6,113 square miles. The river's name comes from the French phrase "grande ronde," meaning "great circle," describing its meandering path through the mountains. The hydrology of the river is characterized by a snowmelt-dominated flow regime, with the highest flows occurring in late spring and early summer. The river is not dammed, but several small reservoirs exist for irrigation purposes. The Grande Ronde River is a popular destination for fishing, kayaking, and rafting, and its surrounding area is used for grazing and hay production. The river has historical significance, as it was a site of conflict between native tribes and settlers in the mid-1800s.
Recreation along the Grande Ronde River
Fishing access and paddle runs Snoflo tracks within the watershed.
Paddle runs
- Grande Ronde River (Lower)
- The Confluence With The Grande Ronde River To Ends In The Slack Water Of The Lower Granite Reservoir, Located One Half Mile Above The Town Of Asotin, Washington
- Snake River - 4.01
- Joseph Creek
- The Northern Boundary Of The Wallowa-Whitman National Forest To The Confluence With The Grande Ronde River
Track the Grande Ronde River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Grande Ronde River
Where does the data for the Grande Ronde River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.