BirdTrout
Mongaup River, New York
12.1 mapped river miles, draining 193 square miles, in the Middle Delaware Mongaup Brodhead basin watershed. No gauge stands in it; the nearest is 8.1 miles away, and what this page knows about its temperature is NYSDEC's classification of the water itself.
50°F and colder is cold, through cold-transitional and cool, to warm above 70°F — the same four bands, breaking at 58, 64 and 70°F, that the app paints. Grey is water nobody has measured.
The nearest live reading
The nearest gauge is 8.1 miles away, at Neversink River At Bridgeville Ny — not a reading of this water, but of what the region is doing today.
Thermal classification
NYSDEC's classification of this water, reach by reach. A class, not a temperature — no July mean, because none was measured here.
| Reach | Typed miles | Band | NYSDEC type |
|---|---|---|---|
| RM 12.1–0.0 | 15.8 | cold | — |
NYSDEC has classified 15.8 of the 25 miles NHD carries for this stream — 64% of it. Every typed reach carries the same class, cold. The untyped reaches are not warm water — they are water NYSDEC's inventory does not reach, and the mile ranges above span only the reaches it does.
Questions about this river
- Mongaup River fishing report — what it reads right now
- How to get to the Mongaup River — access, parking and public land
- Mongaup River fishing regulations — season, size and gear by reach
NYSDEC classification
NYSDEC classifies this water as Class B — swimming and contact recreation. On those reaches DEC also designates it trout waters — which is the half of the classification that is about temperature, and the half this map paints by. The class is a designation of best usage under 6 NYCRR — what the water is protected for — and not the season and creel rules, which change yearly and live with the agency.
NYSDEC water quality classifications and standards →
Access
4 mapped NYSDEC access sites within a quarter mile of the water, upstream first: Mongaup Falls Reservoir At Forestburgh (RM 10.5), Rio Reservoir At Forestburgh (RM 7.9), Rio Reservoir At Lumberland (RM 4.6), Delaware River At Sparrow Bush (RM 0.1). 3 walk-in, 1 boat or canoe launches.
Public land on the river
1 unit of public or open-access land touches this river, 6,441 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| Mongaup Valley Wma | state conservation department | 6,441 |
Species
NYSDEC designates this as trout water — Trout waters — without naming the species. No fish survey or stocking record for this water is in the files this site reads.
Tributaries and watershed
5 named streams meet this one. Confluence miles are above the mouth; the longest twelve are listed.
- Bush Kill 12.4 mi · RM 3.5
- Black Lake Creek 10.7 mi · RM 11.3
- Black Brook 7.4 mi · RM 8.6
- Lebanon Lake Brook 6.1 mi · RM 11.2
- Long Falls Brook 2.1 mi · RM 9.1
Mongaup River sits in HUC 8 02040104, the Middle Delaware Mongaup Brodhead basin, and drains 193 square miles, Strahler order 5 at the mouth. 48 NHD reaches carry the name for 24.5 miles in total — more than the 12.1 miles of drawn mainstem, because NHD counts side channels and braids as their own reaches.
Other water nearby
The closest 6 rivers on this site, straight-line from the middle of this one — not drive time.