Thompson's Lake State Park
The park entrance is 3.6 miles from Altamont. Day use costs Vehicle use fee typically $6–$10 (varies by park/season). Thompson's Lake State Park is a state park in New York.
Thompson's Lake State Park map
Thompson's Lake State Park boundary from USGS PAD-US or the managing agency, simplified for display. Not for navigation or legal boundaries.
Fire restrictions
Fire restriction orders for this unit are not tracked here yet. Restrictions change with the season, so check the current orders before any campfire, stove or target shooting.
Common questions
- Entry to Thompson's Lake State Park costs Vehicle use fee typically $6–$10 (varies by park/season).
- Thompson's Lake State Park is 3.6 miles from Altamont.
- Yes, dogs are allowed at Thompson's Lake State Park.
- Yes, Thompson's Lake is open to swimming at Thompson's Lake State Park.
Before you go
Thompson's Lake State Park is 3.6 miles from Altamont.
- RV dump station on site
Trails
- Delaware National Seashores Fire Island National Trail Named on agency or Wikipedia page
- Lake Canoe-Picnic Point Captree Catharine Valley Trail Named on agency or Wikipedia page
- Taughannock Falls Thompson's Lake Three Falls Trail Named on agency or Wikipedia page
- Turkey Mountain Turner Brook Wallkill Valley Rail Trail Named on agency or Wikipedia page
What to see
- Historic site Visitor center Mentioned in Wikipedia park article
- State park Designation in agency park name
Swimming
- Thompson's Lake
Fishing and water
Thompsons Lake fishing (right at the boundary): its fishing and stocking record on fishypedia.com.
Public lands next to Thompson's Lake State Park
- State park Most of Thompson's Lake State Park lies inside John Boyd Thacher State Park.
Measured between the units' boundaries as mapped in USGS PAD-US. Distances are straight line, not driving.
- parks.ny.gov (accessed 2026-09-30)
- en.wikipedia.org (accessed 2026-09-30)
- en.wikipedia.org (accessed 2026-09-30)
- www2.census.gov (accessed 2026-09-30)
- parks.ny.gov (accessed 2026-09-30)
- newyorkstateparks.reserveamerica.com (accessed 2026-09-30)
- parks.ny.gov (accessed 2026-09-30)