Ancient Lake South fish stocking
Grant County, Washington
Ancient Lake South in Grant County, Washington was last stocked on May 7, 2026 with 1,850 rainbow trout fry from Columbia Basin Hatchery. Across the 4 years shown here, WDFW released 7,403 fish in 4 separate stockings. Stockings here are most common in March, May, and October.
When Ancient Lake South gets fish
Stocking history
Washington reports the exact release date. Sizes for Washington are estimated from the reported fish-per-pound.
2026 · 1,850 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 1,850 | 2.7″ | Fry |
2025 · 1,953 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 1,953 | 2.7″ | Fry |
2024 · 1,800 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 1,800 | 2.9″ | Fry |
2022 · 1,800 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 1,800 | 4.8″ | Fry |
Frequently asked questions
When was Ancient Lake South last stocked?
WDFW records show Ancient Lake South was last stocked on May 7, 2026 (about 5 months ago), with 1,850 rainbow trout fry.
What fish are stocked in Ancient Lake South?
Ancient Lake South has been stocked with rainbow trout in the years shown here (2022–2026).
When does Ancient Lake South usually get stocked?
Most fish have been stocked in March, May, and October. Exact dates change from year to year, so check back or see WDFW's official stocking page.
Do I need a license to fish Ancient Lake South?
Yes, anglers generally need a valid Washington fishing license. Check the current Washington fishing regulations for seasons, limits and any special rules for Ancient Lake South.
Other stocked waters in Grant County
Banks Lake
Hatchery Creek
Moses Lake
Billy Clapp Lake
Potholes Reservoir
Blue Lake
All 76 stocked waters in Grant County →
Source: WDFW Fish Plants (data.wa.gov). Stocked Lakes is not affiliated with Washington Department of Fish and Wildlife. Spot a problem? Let us know.