Lake Hammond is among a cluster of small lakes in southeastern Lake County (Index Map G). The physiography is described by Brooks (1981), as The Gap, an area of lower elevation, about 25 to 37 m (85 to 120 ft) in between the Sugarloaf Mountain region and No Name Ridge. The lower elevation is a result of increased erosion of the underlying limestone. The Gap and the flanking highlands are part of the Lake Wales Ridge, which is the topographic crest of Central Florida (Brooks, 1981). The Ridge is characterized by residual sand hills, relic beach ridges and paleo dune fields. The topography on either side of the ridge has been reduced to the water table, forming Green Swamp to the southwest and Sawgrass Bays to the southeast. Lake level in December of 1995 was 26 m (85 ft) NVGD. Lake Hammond is irregular in shape, with a perimeter of 3 km and a surface area of about 0.5 km².