Union Flat Creek fish stocking
Whitman County, Washington
Union Flat Creek in Whitman County, Washington was last stocked on May 20, 2026 with 500 rainbow trout from Tucannon Hatchery. Across the 5 years shown here, WDFW released 2,500 fish in 5 separate stockings. Stockings here are most common in May.
When Union Flat Creek gets fish
Stocking history
Washington reports the exact release date. Sizes for Washington are estimated from the reported fish-per-pound.
2026 · 500 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 500 | 9.3″ | Catchable |
2025 · 500 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 500 | 9.3″ | Catchable |
2024 · 500 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 500 | 9.3″ | Catchable |
2023 · 500 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 500 | 9.3″ | Catchable |
2022 · 500 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 500 | 9.3″ | Catchable |
Frequently asked questions
When was Union Flat Creek last stocked?
WDFW records show Union Flat Creek was last stocked on May 20, 2026 (about 5 months ago), with 500 rainbow trout.
What fish are stocked in Union Flat Creek?
Union Flat Creek has been stocked with rainbow trout in the years shown here (2022–2026).
When does Union Flat Creek usually get stocked?
Most fish have been stocked in May. Exact dates change from year to year, so check back or see WDFW's official stocking page.
Do I need a license to fish Union Flat Creek?
Yes, anglers generally need a valid Washington fishing license. Check the current Washington fishing regulations for seasons, limits and any special rules for Union Flat Creek.
Other stocked waters in Whitman County
Rock Lake
Garfield Pond
Gilcrest Pond
Pampa Pond
Riparia Pond
All 6 stocked waters in Whitman 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.