21
Everglades
22
Everglades
23
Everglades
24
Everglades
25
Everglades
26
Everglades
27
Everglades
28
Everglades
29
Everglades
30
Everglades National Park, Big Cypress Drainage Area, Gulf of Mexico
31
Everglades National Park, Collier County, Monroe County, Hendry County, 40-mile Bend, training airport
32
Everglades National Park, Florida
33
Everglades, Taylor River
34
First Day of Issue Program
35
Flamingo Inn the Everglades National Park
36
Flamingo Marina ( Stop 81- XX)
37
Fort Jefferson National Monument, Florida : shipwreck study -- the Dry Tortugas.
38
Harney River (Stops 81-XXV)
39
Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl
40
Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl