Petroglyph:
Ano_Nuevo_SP
Petroglyph:
Petrified_Forest_NP_01
Petroglyph:
Petrified_Forest_NP_02
Petroglyph:
Petrified_Forest_NP_03
Petroglyph:
Petrified_Forest_NP_04
Petroglyph:
Petrified_Forest_NP_05
Petroglyph:
Petrified_Forest_NP_06
Petroglyph:
Yellowstone_01
Petroglyph:
Bryce_Canyon_NP
Petroglyph:
CA_Natural_Bridges_SP
Petroglyph:
CA_Seacliff_State_Beach
Petroglyph:
CA_Wilder_Ranch_State_Park
Petroglyph:
Grand_Teton_NP
Petroglyph:
Zion_NP_02
Petroglyph:
Zion_NP