Mongaup River fish stocking
Bethel, Sullivan County, New York
Mongaup River in Bethel, Sullivan County, New York was last stocked in April 2025 with 880 brown trout. Across the 4 years shown here, NYSDEC released 3,380 fish in 8 separate stockings. Stockings here are most common in April.
2026 stocking plan
From NYSDEC's published season plan. Plans can change because of weather and hatchery conditions.
| When | Species | Fish | Size |
|---|---|---|---|
| — 2026 | Brown Trout | 70 | 12–15 inches |
| — 2026 | Brown Trout | 620 | 9– 10 inches |
When Mongaup River gets fish
Stocking history
New York reports the month of each stocking, not the exact day.
2025 · 880 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 790 | 7.1″ | |
| Brown Trout | 90 | 13.9″ |
2024 · 840 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 90 | 13.4″ | |
| Brown Trout | 750 | 11.2″ |
2023 · 830 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 750 | 8.9″ | |
| Brown Trout | 80 | 13.1″ |
2022 · 830 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 750 | 9″ | |
| Brown Trout | 80 | 13.5″ |
Frequently asked questions
When was Mongaup River last stocked?
NYSDEC records show Mongaup River was last stocked in April 2025 (about 2 years ago), with 880 brown trout.
What fish are stocked in Mongaup River?
Mongaup River has been stocked with brown trout in the years shown here (2022–2025).
When does Mongaup River usually get stocked?
Most fish have been stocked in April. Exact dates change from year to year, so check back or see NYSDEC's official stocking page.
Do I need a license to fish Mongaup River?
Yes, anglers generally need a valid New York fishing license. Check the current New York fishing regulations for seasons, limits and any special rules for Mongaup River.
Other stocked waters in Sullivan County
Besver kill
Beaverkill
Neversink River
Willowemoc
Beaver Kill
Callicoon Creek North Branch
All 26 stocked waters in Sullivan County →
Source: Fish Stocking Lists (Actual) (data.ny.gov), Current Season Spring Trout Stocking (data.ny.gov). Stocked Lakes is not affiliated with New York State Department of Environmental Conservation. Spot a problem? Let us know.