Lochloosa Lake is located in the Alachua Prairies, southern Alachua county. Part of the Ocala Uplift, this area of highly mature karst terrain has been dissolved virtually to the water table (Brooks, 1981), creating loosely connected marshlands and lakes. Lochloosa is connected via Cross Creek to Lake Orange, which ultimately connects via canal to Paynes Prairie to the north. The shoreline is predominantly marshland, with Lochloosa creek to the north and Little Lochloosa and Right Arm Lochloosa Lake to the south and west. Lochloosa Lake is irregular in shape, with a perimeter of 21 km (13 mi) and an area of about 22 km². Lake elevation at the time of the seismic survey was 17.5 m (57.5 ft) NGVD.