 In 1902, the Sunnyside Assembly purchased the land on the northwest side of Portage Lake that had formerly belonged to the Marvins.They changed the name of their organization to the Portage Point Assembly and incorporated it on 31 January 1902 under the special 1897 act of the Michigan legislature for building a resort and immediately began to build the Portage Point Inn on 12 July 1902.The following year, the building first opened for guests on 20 June 1903.