Mongaup River trout stocking
Bethel, Sullivan County, New York · stream
Mongaup River was last stocked 18 months ago (Apr 1 to 30, 2025). We have 8 stockings on record since Apr 1, 2023. Most stockings come in April. Species stocked: brown trout.
River conditions
USGS gage: MONGAUP RIVER AT MONGAUP VALLEY NY (8 km away).
- Flow
- 60 cfs
- lower than usual for the last six weeks
- Gage height
- 3.13 ft
Latest reading Sep 25, 2026, 2:30 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Mongaup River
- Tonight41°FPartly Cloudywind 6 mph
- Friday69°FPartly Sunnywind 6 to 10 mph
- Friday Night49°FMostly Cloudy1% rain · wind 10 mph
- Saturday64°FLight Rain Likely58% rain · wind 13 mph
- Saturday Night50°FLight Rain Likely61% rain · wind 13 mph
- Sunday64°FLight Rain Likely60% rain · wind 13 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Mongaup River stocked?
Most stockings come in April.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | |||||||||||
| 2025 | 1 | |||||||||||
| 2024 | 1 | |||||||||||
| 2023 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Brown trout | 6 | 2,550 | 425 | 13.1 in |
Stocking history
| Date | Species | Fish | Pounds | Hatchery |
|---|---|---|---|---|
| Apr 1 to 7, 2026planned | Brown trout | 70 | ||
| Apr 1 to 7, 2026planned | Brown trout | 620 | ||
| Apr 1 to 30, 2025 | Brown trout | 90 | ||
| Apr 1 to 30, 2025 | Brown trout | 790 | ||
| Apr 1 to 30, 2024 | Brown trout | 90 | ||
| Apr 1 to 30, 2024 | Brown trout | 750 | ||
| Apr 1 to 30, 2023 | Brown trout | 750 | ||
| Apr 1 to 30, 2023 | Brown trout | 80 |
From New York fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go.
Where is Mongaup River?
Bethel, Sullivan County, New York. Approximate: the marker is the town the agency names for the stocked section, from USGS place names.
Stocked waters near Mongaup River
- Beaver Brookstream · 10 mistocked Apr 1, 2025
- Halfway Brookstream · 10 mistocked Apr 1, 2025
- Callicoon Creekstream · 11 mistocked Apr 1, 2025
- Mongaup Falls Reservoirlake · 11 mistocked Apr 1, 2025
- Loch Sheldrake13 mistocked Apr 1, 2025
- Neversink Reservoirlake · 15 mistocked Oct 1, 2023
- Neversink Reservoirlake · 15 mistocked May 1, 2025
- Chestnut Creekstream · 17 mistocked Apr 1, 2025
All stocked waters in Sullivan CountyStocked this week in New York
Questions about Mongaup River
- When was Mongaup River last stocked?
- The latest reported stocking was Apr 1 to 30, 2025 (brown trout, 90 fish), according to New York agency reports.
- How often is Mongaup River stocked?
- Across all years on record, most stockings come in April.
- What kind of trout are stocked in Mongaup River?
- Brown trout (6 stockings, 2,550 fish).