Over time, as Congress added to the National Park System, the variety and diversity of geologic features in parks has come to represent America's geologic heritage. Significant geologic features include fossil resources, cave & karst resources, and much more. Learn more...
Duval County, Florida. Duval County is a county located in the State of Florida. As of the 2010 census, the population was 864,263, with a 2015 estimate at 913,010. Its county seat is Jacksonville, with which the Duval County government has been consolidated since 1968. Duval County was established in 1822, and is named for William Pope Duval, Governor of Florida Territory from 1822 to 1834. Duval County is included in the Jacksonville, FL Metropolitan Statistical Area.
Black Hammock Island and the city of Jacksonville are located in Duval County, Florida. The population of the county is 864,263; Jacksonville is the county seat. Duval County is named after William Pope DuVal, former Governor of the Florida Territory. Duval County is bordered by Nassau County to the north, St. Johns County to the southeast, Clay County to the southwest and Baker County to the west. Cities and towns within the county include Atlantic Beach, Baldwin, Jacksonville, Jacksonville Beach and Neptune Beach. Timucuan Ecological and Historic Preserve is one of its two national protected areas; For Caroline National Memorial, the first French colony in the US, is the other.