About the Owyhee River Basin
The Owyhee Basin, as defined by the Oregon Water Resources Department, covers the Oregon part of the Owyhee River watershed in the far southeast corner of the state: high-desert plateaus and deep basalt and rhyolite canyons from the Nevada line past Rome to Lake Owyhee, then down to the Snake River near Adrian, along with Jordan, Crooked and Succor creeks. Spring snowmelt from Idaho, Nevada and Oregon brings a short high-water season that draws whitewater boaters to the remote canyons below Rome, and much of the river is a federal Wild and Scenic River. The U.S. Bureau of Reclamation’s Owyhee Dam (1932) stores the water in Lake Owyhee for irrigation around Nyssa, Adrian and Ontario; the lake is popular for boating, fishing and camping, and the river below the dam is a tailwater trout fishery. River Flow Planner covers 3 gages here: the Owyhee River near Rome (records back to 1949), the Owyhee River below Owyhee Dam (back to 1929) and Lake Owyhee. Idaho Power’s gages on Succor Creek and on the Owyhee River near Adrian have no current public daily records, so they are not included.
What River Flow Planner shows for each gage
Each gage page turns the agency’s full daily record into planning tools for fishing, rafting, kayaking, swimming, boating, irrigation and in-stream work:
- Summary hydrograph of typical flows, river stages or lake levels through the year
- Percent of time flows fall within a range you choose
- Likely range of flows on future dates you pick
- How a recent period compares with normal, plus a year-by-year spaghetti plot
- Flood frequency statistics for USGS gages with peak-flow records
- CSV downloads and links to current real-time data and short-term forecasts
Owyhee River
The Owyhee River at Rome and below Owyhee Dam, listed upstream to downstream.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Owyhee River near Rome, OR | USGS 13181000 | Streamflow (cfs) | 1949–2026 | Malheur County, OR |
| Owyhee River below Owyhee Dam, OR | USGS 13183000 | Streamflow (cfs) | 1929–2026 | Malheur County, OR |
Lake & Reservoir Levels
Water-surface elevation of the U.S. Bureau of Reclamation’s Lake Owyhee.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Lake Owyhee near Nyssa, OR | USBR OWY | Lake / reservoir water-surface elevation (ft) | 1980–2026 | Malheur County, OR |
Other basins
Rogue River Basin · Klamath River Basin · Deschutes River Basin · North Coast Basin · Mid Coast Basin · Umpqua River Basin · South Coast Basin · Willamette River Basin · Sandy River Basin · Hood River Basin · John Day River Basin · Umatilla River Basin · Grande Ronde River Basin · Powder River Basin · Malheur River Basin · Malheur Lake Basin · Goose & Summer Lakes Basin