Reservoir · Sullivan, New York

Mongaup Falls Reservoir

At a glance

Area: 43 ha (107 acres)

Who lives here

Brown trout Salmo truttaStocked · 2025 · Fish stocking: New York State Department of Environmental Conservation, Fish Stocking Lists (data.ny.gov)

Not listed doesn't mean no fish.

Stocking

Year	Species	Number
2025	Brown Trout	1,340
2024	Brown Trout	1,360
2023	Brown Trout	1,280
2022	Brown Trout	1,275
2021	Brown Trout	1,400
2020	Brown Trout	1,100
2019	Brown Trout	1,330
2018	Brown Trout	1,300
2017	Brown Trout	1,240
2016	Brown Trout	1,290

As the agency publishes it. Newest first: 10 of 10.

Getting on the water

No public access site is listed for this water yet.

Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.

The rules

Summary, not the law. Check the official regulations before you fish.

HuntGrid has no rules for this water yet.

Official regulations: New York State DEC

What's biting

This water is too small for community summaries: on a small water a summary could point to someone's spot.

About this page

Sources and licences:

U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
Fish stocking: New York State Department of Environmental Conservation, Fish Stocking Lists (data.ny.gov) · OPEN-NY Terms of Use (https://data.ny.gov/dataset/OPEN-NY-Terms-Of-Use/77gx-ii52, read 2026-10-19): no attribution required; "You agree to defend, indemnify and hold harmless the State", accepted under the owner's 2026-10-19 rule. data.ny.gov dataset e52k-ymww (Fish Stocking Lists (Actual): Beginning 2011, read 2026-10-19) states no other licence. Credit the agency; remove the layer if the agency asks.

The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.