Serpent Mounds Park is a former historical and recreational park located in Keene, Ontario. Serpent Mounds operated as a provincial park, established in 1955 through a lease with the Hiawatha First Nation, a historic Mississaugas people. During this time, in 1982, the mounds were designated a National Historic Site, comprising six sites, including on [east] Sugar Island. From 1995 to 2009, the Hiawatha First Nation operated the park privately, offering camping facilities, beach access on Rice Lake, a cultural center, and interpretive walks among the historic serpent and nearby mounds.[2] The park has been closed since 2009.