StockingRecord
Menu
Sullivan County

Mongaup River East Branch

NYSDEC reported 860 trout stocked in Mongaup River East Branch (Sullivan County) in 2025, the latest year in its stocking lists. The most recent month listed is April 2025. DEC lists stocking by month, not by day.

NYSDEC data pulled .

A river with spring and sunrise
Photo: Csillagvirág, Pixabay License, Pixabay

Mongaup River East Branch in numbers

trout stocked in 2025
860
yearly average, 2020–2024
826
years stocked since 2020
6
Stocking log

Every stocking record

DEC stocking lists for the last three years on record, by month and species, newest first, then yearly totals. DEC lists each batch with its average length; where a month has several batches the range is shown.

Last stocked, April 2025860860 brown trout
2025 · 860 fish
MonthSpeciesFishBatchesAverage length
AprilBrown trout860 fish · Average length: 7.1–13.9 in86027.1–13.9 in
2024 · 830 fish
MonthSpeciesFishBatchesAverage length
AprilBrown trout830 fish · Average length: 8.2–13.4 in83028.2–13.4 in
2023 · 820 fish
MonthSpeciesFishBatchesAverage length
AprilBrown trout820 fish · Average length: 8.9–13.1 in82028.9–13.1 in
Every year since 2020
YearFish
2025860 fish860
2024830 fish830
2023820 fish820
2022820 fish820
2021820 fish820
2020840 fish840
2020 – 2025

Trout stocked each year

DEC’s lists end with the latest year it has published. The tallest year is yellow.

  1. 8402020: 840 fish
  2. 8202021: 820 fish
  3. 8202022: 820 fish
  4. 8202023: 820 fish
  5. 8302024: 830 fish
  6. 8602025: 860 fish

What is stocked here

All records since 2020
SpeciesFishShare
Brown trout4,990100%

No single map point is given for this water in the USGS names database, so no map is shown.

Also in Sullivan County: Willowemoc Creek, Beaver Kill, Callicoon Creek East Branch, Callicoon Creek North Branch, Neversink River, Ten Mile River, Neversink Reservoir, Beaver Brook.

Source: DEC fish stocking lists (actual), data.ny.gov and the DEC spring trout stocking plan, data.ny.gov, New York State Department of Environmental Conservation. Pulled . Check the agency and the current fishing rules before you go.