BirdTrout
South Branch Grass River, New York
24 mapped river miles, draining 45 square miles, in the Grass basin watershed.
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.
Thermal classification
There is no USGS gauge within 40 miles of this stream in the record this site holds, so there is no live temperature on this page and no measured July mean. Everything below the bar is NYSDEC's own classification of the water.
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 24.1–0.0 | 49.0 | cold | — |
NYSDEC has classified 49.0 of the 49 miles NHD carries for this stream — 99% 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
- South Branch Grass River fishing report — what it reads right now
- How to get to the South Branch Grass River — access, parking and public land
- South Branch Grass River fishing regulations — season, size and gear by reach
NYSDEC classification
NYSDEC classifies this water as Class C — fishing and Class D — fishing, natural conditions limit the fishery. More than one class appears because the classification changes along the river. The thermal bar above shows where. 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: Grass River (RM 17.6), First Brook At Clare (RM 9.8), South Branch Grass River Angler Parking (RM 4.9), Grass River At Russell (RM 0.9). 4 walk-in, 0 boat or canoe launches.
Public land on the river
4 units of public or open-access land touch this river, 18,458 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| Grass River Wild Forest | state conservation department | 13,249 |
| Unclassified | state conservation department | 3,940 |
| Degrasse State Forest | state conservation department | 1,180 |
| South Branch Grass River — State Land, Fishing Access | NYSDEC | 89 |
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
12 named streams meet this one. Confluence miles are above the mouth; the longest twelve are listed.
- Colton Creek 5.9 mi · RM 0.3
- Moosehead Pond Outlet 4.7 mi · RM 12.8
- Bend Brook 4.0 mi · RM 11.8
- Cook Pond Outlet 3.3 mi · RM 19.6
- Second Brook 3.2 mi · RM 10.6
- Irish Brook 2.9 mi · RM 23.8
- Randall Brook 2.3 mi · RM 4.5
- Twin Ponds Outlet 2.0 mi · RM 21.2
- Allen Pond Outlet 1.9 mi · RM 7.5
- First Brook 1.8 mi · RM 9.8
- Steep Bank Brook 1.4 mi · RM 8.5
- Allen Brook 1.3 mi · RM 6.1
South Branch Grass River sits in HUC 8 04290004, the Grass basin, and drains 45 square miles, Strahler order 4 at the mouth. 117 NHD reaches carry the name for 49.4 miles in total — more than the 24.1 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.