 The terrain consists of wooded rolling hills, heavily dotted with lakes and ponds, and slopes to the south and east; its highest point is on the upper western border, at 1,614' (492m) ASL.The county has an area of , of which is land and (16%) is water.In recent years, average temperatures in the county seat of Walker have ranged from a low of in January to a high of in July, although a record low of was recorded in February 1996 and a record high of was recorded in August 1976.