Sylvan Island Sylvan Island is an abandoned industrial site that is approximately 35 acres in the Mississippi River / Sylvan Slough. It is located at 1st Avenue and 2nd Street. Water access is located on the island. Public restrooms, water, and parking are located at Sylvan Gateway Park at the entrance to the island.
Greenvalley Nature Preserve / Old Greenvalley The Greenvalley Nature Preserve / Old Greenvalley area is approximately 250 acres. It is located at 48th through 60th Street and 52nd Avenue and 55th Avenue and 48th Street.
Recreation Opportunities & Amenities Recreational opportunities and amenities include: