Wesselman Woods Nature Preserve is an Indiana State Nature Preserve and National Natural Landmark featuring nearly 200 acres of virgin bottomland hardwood forest. This old-growth lowland forest is of exceptionally high quality. The mean density of Newburgh Trail at Wesselman Woods Nature Preserve ( photo courtesy of Aaron Chenoweth)trees is high (125 trees per acre) and the canopy starts far above the forest floor. There are many trees reaching 100 feet tall, and some are estimated to be nearly 300 years old. The basal area of 187 square feet per acre is the highest known for any woods in Indiana.
Despite the moderate variation in elevation within the woods (only 20 ft) there is a wide diversity of tree, shrub, and wildflower species