Leif Ericson Camp is located along the Big Sioux River in eastern Sioux Falls where 26th Street East meets the Big Sioux. It's 70+ acres extend along the west side of the river for over a mile. The area is beautiful riparian river forest and grassland with a mix of deciduous and coniferous trees. The evergreens are introduced species, while the deciduous are mostly native, including 100 foot cottonwoods that are over 140 years old, many large Ash, Boxelder (Ashleaf Maple), Hackberry, Red and White Mulberry, and Maple. Click here For information on large trees of South Dakota http://www.state.sd.us/doa/forestry/programs-Services/forestry/Register-of-Big-Trees.htm.Adjacent to the forest are grass areas of introduced and native grasses. marsh areas with swamp grasses including; cattail, canary grass, etc. The camp has four major islands, two which are developed for camp use.