Ranger Robb:
Arranged Rocks. Covington Flats, JOTR, CA
Ranger Robb:
Potsherd, Covington Flats, JOTR, CA
Ranger Robb:
Potsherd. Covington Flats, JOTR, CA (2)
Ranger Robb:
Potsherd. Covington Flats, JOTR, CA
Ranger Robb:
Alcove Rock Art, Wonderland Wash, JOTR, CA (1)
Ranger Robb:
Alcove Rock Art, Wonderland Wash, JOTR, CA (2)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (1)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (2)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (3)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (4)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (5)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (6)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (7)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (8)
Ranger Robb:
Pictographs, Wonderland Wash, JOTR, CA (9)
Ranger Robb:
Stone Morter, Wonderland Wash, JOTR, CA (1)
Ranger Robb:
Stone Morter, Wonderland Wash, JOTR, CA (2)
Ranger Robb:
Potsherd, Coxcomb Mountains, Joshua Tree NP, CA (36)
Ranger Robb:
Pictographs, Wonderland Connector Route, Joshua Tree NP, CA (6)
Ranger Robb:
Pictographs, Wonderland Connector Route, Joshua Tree NP, CA (31)