Crescent Lake (Rattlesnake Pond)
Crescent Lake (formerly Rattlesnake Pond) receives drainage from Coffee Pond and Dumpling Pond in northern Casco, Maine, and extends south into Raymond. The south end of the lake overflows through the Tenny River to Panther Pond  south. The town of Raymond maintains a small boat ramp and swimming area on Maine State Route 85 at the south end of the lake. Smallmouth bass, largemouth bass, chain pickerel, and white perch thrive in the lake, with sizable specimens of each species caught by anglers each year. Dissolved oxygen deficiency below the  summer thermocline limits suitability for cold-water fish; but the lake still supports populations of cusk and rainbow smelt. Sources

Lakes of Cumberland County, Maine
Casco, Maine
Raymond, Maine
Lakes of Maine