New York
St. Lawrence River — Thousand Islands NY
Location Snapshot
St. Lawrence River — Thousand Islands is a vast border-river fishery built around islands, shoals, channels, and rocky structure. Smallmouth bass, muskellunge, and walleye are the principal supported targets.
Information Only
StrikeTracks does not currently provide a live condition rating for this destination. Destination and fishery information is still available.
Fishing Overview
In the Thousand Islands, Wellesley Island sits in the St. Lawrence, where the park fishing includes smallmouth bass and muskie.
Fishery Profile
Documented species you may encounter at St. Lawrence River — Thousand Islands NY.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Target species

Muskellunge
Esox masquinongy
- Expectation
- Primary
- Population
- Established
- Native status
- unknown
- Confidence
- High confidence
Source: NYSDEC

Smallmouth Bass
Micropterus dolomieu
- Expectation
- Primary
- Population
- Established
- Native status
- unknown
- Confidence
- High confidence
Source: NYSDEC

Walleye
Sander vitreus
- Expectation
- Common
- Population
- Established
- Native status
- unknown
- Confidence
- High confidence
Source: NYSDEC
Fishery characteristics
- Composition
- Mixed wild and stocked
- Great Lakes tributary
- No
- Flow regime
- Natural flow
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Boat fishing
- Shore fishing
- Spinning
Official sources
Hatch Match
Loading hatch suggestions…
Location and Access
Cataloged river location
Jefferson, New York
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
River Details
County
Jefferson
DEC Region
6
Management Category
Great Lakes connecting water
Regulation Scope
St. Lawrence River — New York Thousand Islands.
Regulation Summary
NYSDEC Great Lakes / St. Lawrence fishing regulations apply. Confirm current seasons and limits for New York Thousand Islands waters.
Target Species
Smallmouth Bass, Largemouth Bass, Muskellunge, Walleye
Access, Parking, and Regulations
Loading access and regulations…
