BirdTrout

Carlls River, New York

6.4 mapped river miles, draining 37 square miles, in the Southern Long Island basin watershed. No gauge stands in it; the nearest is 10.0 miles away, and what this page knows about its temperature is NYSDEC's classification of the water itself.

Open in BirdTrout →Get it on the App Store

Public land — where the bank is open to walk and fish

USGS gauge — live water temperature

Water temperature — the colour of the river, and of every dot on it

58 64 70

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 10.0 miles away, at Connetquot River — 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.

NYSDEC has classified 2.9 of the 7.8 miles NHD carries for this stream — 37% 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

• Carlls River fishing report — what it reads right now
• How to get to the Carlls River — access, parking and public land
• Carlls River fishing regulations — season, size and gear by reach

NYSDEC classification

NYSDEC classifies this water as Class B — swimming and contact recreation, Class C — fishing, Class SA — shellfishing, and Class SC — fishing, saline. 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

1 mapped NYSDEC access site within a quarter mile of the water, upstream first: Belmont Lake At North Babylon (RM 4.1). 1 walk-in, 0 boat or canoe launches.

Public land on the river

8 units of public or open-access land touch this river, 1,164 acres in total. Acreage is the whole unit, not the part beside the water.

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

1 named stream meets this one. Confluence miles are above the mouth; the longest twelve are listed.

• Fosters Creek 0.6 mi · RM 0.0

Carlls River sits in HUC 8 02030202, the Southern Long Island basin, and drains 37 square miles, Strahler order 2 at the mouth. 25 NHD reaches carry the name for 7.8 miles in total — more than the 6.4 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.

• Sampawams Creek 0.9 mi
• Champlin Creek 3.9 mi
• Connetquot Brook 6.1 mi
• Northeast Branch 8.9 mi
• Swan River 9.9 mi
• Carmans River 13.7 mi