Accession number: 86.200.560; Attribution to Jackson based on the photonegative's inclusion in the History Colorado William Henry Jackson Collection.; History Colorado.; Formerly Jackson 2572; Hand-lettered title on negative.; Number: "2572" hand lettered on negative.; Title on photonegative envelope reads: "Hagerman Pass, Mount Massive."; R7201005348
Talus (Geology)--Colorado--Lake County--1890-1900.; Lake County (Colo.)--1890-1900.; Massive, Mount (Colo.)--1890-1900.; Cliffs--Colorado--Lake County--1890-1900.