Talus slopes above creek in Teocalli Mountains, Alaska, August 1914

• Other Authors: University of Washington Libraries. Special Collections Division.
• Format: Other/Unknown Material
• Language: unknown
• Subjects: Mountains > Alaska; Streams > Alaska; Teocalli Mountains (Alaska); Talus (Geology) > Alaska; Slopes (Physical geography) > Alaska; Anchorage; Kuskokwim; Alaska
• Online Access: http://cdm16786.contentdm.oclc.org:80/cdm/ref/collection/alaskawcanada/id/3687

Talus, or scree, is the result of weathering of bedrock; the materials in talus are in the process of transforming from stable bedrock into clay. Talus is not a stable material, and landslides may easily occur on talus slopes. McPherson number: K245 PH Coll 495.1-61c Photograph from album created in circa 1914 by James Lennox McPherson, a civil engineer, that documents the activities of the Kuskokwim Reconnaissance survey party (known as Party No. 11 of the Alaska Railroad Commission expedition). The A.E.C. had assigned McPherson to research the feasibility of building a branch railroad from Anchorage west to the mining districts on the Kuskokwim and Iditarod Rivers.