Indiana thirteen-lined ground-squirrel records favor short grass and open, well-drained ground, from the restored prairie at Prophetstown State Park to mown roadsides, parks, and northern Indiana field margins. Tippecanoe County leads with 25, 16 of them from Prophetstown alone. Reports run from March through September, highest in May and June, and stop entirely from October through February, bracketing the active season before winter hibernation.
The 73 iNaturalist records represent encounters, not ground-squirrel abundance. Colonies beside trails or lawns are easy to revisit, while similar habitat on private land is underreported, so mapped clusters reflect access and repeated observation as much as distribution.





