The Caney Fork flows down from its source atop the Cumberland Plateau and winds its way northwestward across the Eastern Highland Rim before emptying into the Cumberland River near Carthage, Tennessee.
 Center Hill Dam, located approximately 26.6 miles (42.8 km) above the mouth of the Caney Fork, has created a reservoir that spans a 68-mile (109 km) stretch of the river between the dam and the Great Falls Dam at Rock Island State Park in adjacent Warren County.
 Edgar Evins State Park covers the northeast shore of the reservoir immediately upstream from Center Hill Dam.

The park is situated amidst rolling hills ("knobs") that comprise part of the geological boundary between the Eastern Highland Rim and the Central Basin.
 These hills are typically underlain by Mississippian period limestone, the erosion of which has created karst-like formations throughout the Center Hill Basin.
 Outcroppings of this limestone are visible along the cliffs overlooking the lake.

Most of Edgar Evins State Park is coated in a second-growth hardwood forest typical of the Eastern Highland Rim.
 Common tree species include the tuliptree, white basswood, sugar maple, white ash, and various species of oak and hickory.
The Caney Fork flows down from its source atop the Cumberland Plateau and winds its way northwestward across the Eastern Highland Rim before emptying into the Cumberland River near Carthage, Tennessee.  Center Hill Dam, located approximately 26.6 miles (42.8 km) above the mouth of the Caney Fork, has created a reservoir that spans a 68-mile (109 km) stretch of the river between the dam and the Great Falls Dam at Rock Island State Park in adjacent Warren County.  Edgar Evins State Park covers the northeast shore of the reservoir immediately upstream from Center Hill Dam.
The park is situated amidst rolling hills ("knobs") that comprise part of the geological boundary between the Eastern Highland Rim and the Central Basin.  These hills are typically underlain by Mississippian period limestone, the erosion of which has created karst-like formations throughout the Center Hill Basin.  Outcroppings of this limestone are visible along the cliffs overlooking the lake.
Most of Edgar Evins State Park is coated in a second-growth hardwood forest typical of the Eastern Highland Rim.  Common tree species include the tuliptree, white basswood, sugar maple, white ash, and various species of oak and hickory.
Edgar Evins State Park