About the Goose & Summer Lakes Basin
The Goose & Summer Lakes Basin, as defined by the Oregon Water Resources Department, covers the closed basins of south-central Oregon’s Lake County, whose streams end in desert lakes and marshes instead of reaching the sea: Silver Creek and Buck Creek to Paulina Marsh near Silver Lake, the spring-fed Ana River to Summer Lake, the Chewaucan River past Paisley to Lake Abert below Abert Rim, Deep, Honey and Twentymile creeks to the Warner Lakes, and Cottonwood and Drews creeks to the Oregon part of Goose Lake near Lakeview. Snowmelt from the Fremont-Winema National Forest and the Warner Mountains brings most of the water in spring; much of it is stored in small reservoirs and used for hay and pasture, and the lakes and marshes are major stops for migrating birds. River Flow Planner covers 16 gages here: streamflow gages with records back to 1905, Lake Abert, Thompson Valley, Drews and Cottonwood reservoirs, two irrigation canals, and a new stage gage on the Chewaucan River at Lake Abert.
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
Warner Valley Streams
Streams of Warner Valley that flow to the Warner Lakes.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Twentymile Creek near Adel, OR | OWRD 10366000 | Streamflow (cfs) | 1910–2026 | Lake County, OR |
| Deep Creek above Adel, OR | OWRD 10371500 | Streamflow (cfs) | 1922–2026 | Lake County, OR |
| Honey Creek near Plush, OR | OWRD 10378500 | Streamflow (cfs) | 1910–2026 | Lake County, OR |
Chewaucan & Ana Rivers
The Chewaucan River from Paisley to Lake Abert, and the spring-fed Ana River at Summer Lake.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Chewaucan River near Paisley, OR | OWRD 10384000 | Streamflow (cfs) | 1912–2026 | Lake County, OR |
| Chewaucan River at Mouth near Valley Falls, OR | USGS 10387110 | River stage (ft) | 2025–2026 | Lake County, OR |
| Ana River near Summer Lake, OR | OWRD 10388000 | Streamflow (cfs) | 1928–2026 | Lake County, OR |
Silver Lake Streams
Silver and Buck creeks near Silver Lake and Paulina Marsh.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Silver Creek near Silver Lake, OR | OWRD 10390000 | Streamflow (cfs) | 1905–2026 | Lake County, OR |
| Buck Creek above Paulina Marsh near Silver Lake, OR | OWRD 10391050 | Streamflow (cfs) | 1989–2026 | Lake County, OR |
Goose Lake Streams
Cottonwood Creek above and below Cottonwood Reservoir in the Goose Lake basin near Lakeview.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Cottonwood Creek above Cottonwood Reservoir near Lakeview, OR | OWRD 11339995 | Streamflow (cfs) | 1980–2026 | Lake County, OR |
| Cottonwood Creek below North Drews Canal near Lakeview, OR | OWRD 11340695 | Streamflow (cfs) | 1976–2026 | Lake County, OR |
Lake & Reservoir Levels
Lake Abert and the Thompson Valley, Drews and Cottonwood reservoirs.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Lake Abert near Valley Falls, OR | USGS 10387150 | Lake elevation, daily mean (ft) | 2023–2026 | Lake County, OR |
| Thompson Valley Reservoir near Silver Lake, OR | OWRD 10388800 | Reservoir level, midnight reading (ft) | 2000–2026 | Lake County, OR |
| Drews Reservoir near Lakeview, OR | OWRD 11338500 | Reservoir level, midnight reading (ft) | 2009–2026 | Lake County, OR |
| Cottonwood Reservoir near Lakeview, OR | OWRD 11340000 | Reservoir level, midnight reading (ft) | 2016–2026 | Lake County, OR |
Canals & Diversions
Irrigation canals at Summer Lake and Silver Lake.
| Gage | Agency & ID | Measures | Daily record | County |
|---|---|---|---|---|
| Summer Lake Canal near Summer Lake, OR | OWRD 10387500 | Canal / diversion flow (cfs) | 1926–2026 | Lake County, OR |
| Silver Lake Irrigation District Canal near Silver Lake, OR | OWRD 10389500 | Canal / diversion flow (cfs) | 1923–2026 | Lake 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 · Owyhee River Basin · Malheur Lake Basin