 Prior to 1869, Lake Charlevoix (then known as Pine Lake) was two feet higher than Round Lake, which was 2 feet higher than Lake Michigan.In order to aid lumber and boat traffic, city leaders pooled resources to cut a channel between Lake Charlevoix to Round Lake, and to dredge the Pine River for navigation between Round Lake and Lake Michigan.When this was completed in 1869, lake levels dropped, and navigation between Lake Charlevoix and Lake Michigan was established.