No.	Title	Date
21	Everglades
22	Everglades	1978-03
23	Everglades
24	Everglades
25	Everglades National Park, Big Cypress Drainage Area, Gulf of Mexico
26	Everglades National Park, Collier County, Monroe County, Hendry County, 40-mile Bend, training airport	1980-01
27	Everglades National Park, Florida	1965
28	Everglades, Taylor River	1980-02
29	First Day of Issue Program	1947
30	Flamingo Inn the Everglades National Park	1960/1969
31	Flamingo Marina ( Stop 81- XX) ( 17 photograph sets )
32	Harney River (Stops 81-XXV) ( 23 photograph sets )
33	Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl	1978-01
34	Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl	1978-01
35	Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl	1978-01
36	Hydrological monitoring station NP203, Alice Rudig, P. Rosendahl	1978-01
37	Hydrological monitoring station P36	1978-01
38	Hydrological monitoring station P36	1978-01
39	Hydrological monitoring station P36
40	Hydrological monitoring station P36	1978-01