Hawthorn Park & JI Case Wetland Wildlife Refuge consists of 256.72 acres and total water area of 68.6 acres. Inside Hawthorn Park is a wildlife observation shelter overlooking J I Case Wetland Wildlife Refuge. The Refuge's 50.3 acre lake attracts fisherman and migratory birds. It is located at 6067 E Old Maple Ave Terre Haute, IN 47807.