Eastern moles spend nearly all their time below ground in moist, workable soils, so Iowa observers usually find raised surface tunnels or soil mounds rather than the animal itself. Lawns, meadows, woodland edges, and rich bottomland soils can all support their earthworm- and insect-based diet.
Reports around Effigy Mounds, Decorah, and Maquoketa Caves reflect well-visited eastern Iowa landscapes, not a restriction to those sites. Because signs are easier to submit than a living mole, occurrence data are unusually sensitive to reporting habits.
Records are highest from May through July and rise again in October, periods when soil moisture and near-surface prey can make tunneling more apparent. Moles remain active underground through winter whenever soil conditions allow.
Full species profile
