Geological Survey (U.S.)Super XX; By USGS (GS-VAP-3-82,83); Scale 1:49,000JPEGoai:digital.library.illinois.edu:edd63650-8a10-0137-6d99-02d0d7bfd6e4-7502engPublicStereogram No. 502 - Long's PeakImageryColorado--Larimer CountyColorado1953-09-27University of Illinois Urbana-Champaign