The Mayall Mills State Historic Site in Gray is part of the Maine Bureau of Parks and Lands’ Pineland Public Reserved Lands and is available to the public for recreational use. There are no staff members on site. The site features the first water-powered woolen mill in North America. It is a great place to fish the clear, well-stocked waters of Collyer Brook in Gray or enjoy a scenic lunch at the picnic area. Just upstream (corner of Mayall & Route 100) is another public lot that provides bank access for fishing.
The state historic site is on the corner of Megquier Road and Mayall Road in Gray. To get there from downtown Gray, take Lewiston Road (Route 202) and turn right onto Mayall Road. The mill site is approximately one mile on the left at the intersection of the Megquier Road. Here’s a PDF map that shows the location of Mayall Mills in the context of Pineland Farms and points south.
Find more information at the Mayall Mills Website.