Fort Stevenson State Park Arboretum
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The Fort Stevenson State Park Arboretum is a new arboretum located near the campground at Fort Stevenson State Park 438 acres (1.8 kmĀ²) on the north short of Lake Sakakawea approximately 3 miles (5 km) south of Garrison, North Dakota.
The arboretum contains over 50 native and non-native trees, shrubs, wildflowers and grasses, including Eleagnus angustifolia, Juniperus scopulorum, Salix exigua, and Ulmus pumila.