New York /

Otisco Lake

Lake in New York · 2,312 acres · near Amber, Rice Grove, Williams Grove

Otisco Lake has 1 carry-in launch listed as public.

Invasive species

NYS DEC records zebra mussels (latest 2019), Asian clams (latest 2012), brittle naiad (latest 2016), curly-leaf pondweed (latest 2024), Eurasian watermilfoil (latest 2024), fanwort (latest 2022), fishhook water fleas (latest 1999), spiny water fleas (latest 2021), starry stonewort (latest 2010) and water chestnut (latest 2018) in this water. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

NYS DEC · checked October 18, 2026

Quagga mussels

Quagga mussels (latest report 2019) reported in this water (USGS Nonindigenous Aquatic Species database). Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

USGS Nonindigenous Aquatic Species database · checked October 18, 2026

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2017 and 2021 to 2026.

state reports compiled by U.S. EPA · checked October 18, 2026

Launches

Community

Where people who fish, boat and paddle Otisco Lake talk about it. Lake associations, clubs and local groups will be added as we find them.

Wikidata: Q458210