Davis Lake is located along the Crescent City Ridge in northwestern Volusia County. The ridge is described by Brooks and Merrit (1981), as a complex of Plio-Pleistocene sand hills resting directly on the Floridan Aquifer, which is within the Ocala Limestone. The active karst development of the uplifted limestone makes this area a principle recharge area for the aquifer, as evidenced by the numerous lakes in Volusia and Lake counties. The Crescent City Ridge bisects the marshy lowlands of the Crescent Lake Basin to the east and the St. John’s River valley to the west. The ridge trends southeast-northwest, along with Deland Ridge to the south. Ridge heights reach ~30 m (100 ft) above sea level, lake level at the time of the survey was about 7.6 m (25 ft) NGVD. Lake Davis is elongate in shape, with a perimeter of 5 km covering an area of approximately 1.6 km².