Name Sites Samples
Fillmore County 1 3
Flagler County 1 1
Florence County 2 3
Fluvanna County 2 10
Foard County 4 8
Forest County 2 7
Forrest County 2 6
Forsyth County 1 1
Forsyth County 2 7
Fort Bend County 5 14
France 1884 7307
Franklin County 12 23
Franklin County 12 30
Franklin County 4 8
Franklin County 11 39
Franklin County 1 1
Franklin Parish 5 10
Frederick County 1 1
Freestone County 11 67
Fulton County 4 5
Gadsden County 2 10
Gage County 1 5
Gaines County 1 5
Galveston County 16 89
Garden County 2 36
Garrard County 2 5
Gaston County 2 8
Genesee County 3 62
Gentry County 2 3
George County 1 2