Lake Kerr, in northeast Marion county, is located in the Ocala Scrub area of the Central Lake District. The vast Ocala National Forest lies directly to the south. The shoreline is very irregular and nearly divides the lake in two, with a total length of 30 km. The lake covers an area of about 17 km², water depth ranges between 2-4 m (~6-14 ft) water depth, but exceeds 5 m (~16 ft) in some areas. Salt Springs is located in the southeast portion of the lake and Salt Springs Run connects Lake Kerr to Lake George and the St. Johns River system to the east.