Grand Lake Watershed
[Grand Lake Watershed Boundaries: City and lake geography added by the Grand Lake Watershed Alliance Foundation]
Click Map Above To Enlarge
This map shows the entire 10,298 square mile Grand Lake Watershed. All of the watershed drains into Grand Lake O’ The Cherokees located in northeast Oklahoma. The map shows in darker blue the Neosho River Subwatershed portion located in Kansas. Kansas by far has the largest area of the Grand Lake Watershed with about 57% of the total watershed.
The lighter blue section of the map shows the Spring River Watershed which accounts for about 25% of the total Grand Lake Watershed. The Spring River Watershed is in portions of Missouri, Kansas, and Oklahoma.
The lighter red section of the map depicts the Elk River Watershed which accounts for about 10% of the total Grand Lake Watershed. The Elk River Watershed is in portions of Arkansas, Missouri, and Oklahoma.
The yellow portion of the watershed accounts for about 8% of the total Grand Lake Watershed. It shows the Oklahoma portion of the Neosho River subwatershed. It also shows the areas of tributary streams that drain into Grand Lake O’ The Cherokees such as Horse Creek, and Honey Creek. The yellow portion excludes the Spring River Watershed that is in Oklahoma and the yellow also excludes the Elk River Watershed located in Oklahoma.