MN_0601_Early spring snow storm at Sand Creek.jpg
An early spring snow storm at Sand Creek in the Louisville Swamp unit of the Minnesota Valley National Wildlife Refuge coats threes and land in a blanket of white snow. The Minnesota Valley National Wildlife Refuge is located within the urban and suburban areas of Minneapolis and St. Paul. It is a green belt of large marsh areas totaling approximately 14,000 acres, spanning 99 miles of the Minnesota River. This is one of only four American national wildlife refuges in an urban area, and the largest.