Goll Woods is the least disturbed woodland known to remain in extreme northwestern Ohio. This preserve features some of the largest trees remaining in the state.
Goll Woods exemplifies the "Black Swamp" forest which once covered a vast area of the flat post-glacial lake plains southwest of Lake Erie. An outstanding feature of this woods is the abundance of giant bur oaks and exceptionally large white oaks, chinquapin oaks and cottonwoods. Many of these magnificent trees are 200-400 years old and measure 4 feet in diameter. A rich variety of native shrubs and wildflowers occur in the woods including spotted coral-root and three-birds-orchid. The preserve is best visited in the spring before mosquitoes emerge.