Gravel Island National Wildlife Refuge
Gravel (4 acres) and Spider (23 acres) islands comprise the Gravel Island National Wildlife Refuge. These islands are located in Lake Michigan, approximately 1 mile east of the northern tip of the Door...[more]
Door County, WI
Public use is not allowed due to ground nesting by migratory birds and limited access. For further information please contact staff at the Horicon National Wildlife Refuge Complex in Mayville, WI. Contact (920)387-2658 or email@example.com. The office/visitor center is located on the east side of Horicon Marsh, 3.5 miles south of State Highway 49 on County Road Z.
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