Virginia's Dry Creek

Often overlooked, Dry Creek is home to one of the largest populations of native brook trout in Virginia, thanks in part to an accident of geology. “The geology — lots of carbonate rocks — helps combat acid rain

, which has scarred streams such as the St. Mary’s River. It also explains the Dry’s name. The karst topography creates drainage areas where the river sinks from view.” Lee Graves in the Richmond Times-Dispatch.