Marion County

Counties: Marion County

Natural Areas Organizations

Marion County Indiana Location Map

Marion County is in central Indiana. It is bounded on the north by Boone County and Hamilton County, on the west by Hendricks County, on the south by Morgan County and Johnson County, and on the east by Hancock County Shelby County.

  Natural Areas

Eagle Creek Park
 See also: Indianapolis

Eagle's Crest Nature Preserve

Fort Harrison State Park
 See also: DNR

Holladay Preserve at Ameriplex

Holliday Park
 See also: Friends

Lawrence Creek Nature Preserve

Marott Park Woods Nature Preserve
 See also: DNR [PDF]

Spring Pond Nature Preserve

Warbler Woods Nature Preserve

White Owl

White River State Park
 State of Indiana


Amos Butler Audubon Society

Central Indiana Land Trust

Eagle Creek Park Foundation

Friends of Broad Ripple Park

Friends of Holliday Park

Indiana Native Plant Society - Central Chapter

Keep Indianapolis Beautiful

Mud Creek Conservancy



Marion County Indiana Watersheds map

Marion County Watersheds
Click to enlarge

Red lines on the map depict the boundaries of 8-digit hydrologic units (one convenient definition of a watershed) as shown on this 1974 United States Geological Survey Map.

Marion County drains into two different 8-digit hydrologic units, each represented on the image above by an area between red lines and within the county boundary, designated by a letter. Clicking on a watershed name below will take you to separate page with more information on that watershed.




Upper White