Jefferson Thousand Islands - Seaway Visited by Dig the Falls Team Waterfall LocationsSewalls Island Falls and Dam – Watertown, Jefferson
St. Lawrence Thousand Islands - Seaway Visited by Dig the Falls Team Waterfall LocationsHarper Falls – Clare, Town of, St. Lawrence
Historic/Inundated St. Lawrence Thousand Islands - Seaway Waterfall LocationsHalls Rapids (historical) – Colton, St. Lawrence
Accessible/May not be verified St. Lawrence Thousand Islands - Seaway Waterfall LocationsHailesboro Dam #2 – Gouverneur, St. Lawrence
Accessible/May not be verified St. Lawrence Thousand Islands - Seaway Waterfall LocationsGriffin Rapids – Fine, St. Lawrence
