Fee: School and group tours $5 per person; general admission not listed on park page.
About this park
On several occasions during the Revolutionary War, Major General Henry Knox, commander of the American artillery, set up his headquarters at John Ellison's 1754 Georgian-style house in Vails Gate. The site shows how the Ellisons and other mid-Hudson Valley families lived 200 years ago, including their milling and trade, which shipped flour from their mill down the Hudson to New York City. House tours run Wednesday-Saturday at 10 and 11 a.m. and 1, 2, 3 and 4 p.m., and Sunday 1 to 4 p.m., from Memorial Day weekend to Labor Day weekend. Other times are by appointment.
Knox's Headquarters State Historic Site FAQ
Where is Knox's Headquarters State Historic Site located?
Knox's Headquarters State Historic Site is in Vails Gate, New York, at 289 Forge Hill Road. GPS coordinates: 41.45542, -74.04892. Get directions.
Is there an entrance fee at Knox's Headquarters State Historic Site?
School and group tours $5 per person; general admission not listed on park page. Fees can change by season, so confirm with the park before you go.
How do I contact Knox's Headquarters State Historic Site?
You can call (845) 562-7141. The park office can confirm RV site availability, hookups, length limits and current conditions.
Are there RV campgrounds near Knox's Headquarters State Historic Site?
Yes. The closest RV-friendly campgrounds listed on ParkedRV are:
- Camp Gateway- Brooklyn Ny (60.1 mi, reservable)
- Indian Hollow (86.9 mi, reservable)
- West Thompson Lake Campground (116.2 mi, reservable)
How current is this information about Knox's Headquarters State Historic Site?
This listing was last updated on October 9, 2026. If something is out of date, let us know and we'll fix it.