Photo Archive No. 175.1.1938.02
C-214. SA 104C. P.S. 175, Mesquite Area, N W Corner. Moderate stand of mesquite and fairly heavy understory of burroweed. Grass cover very light and confined to protection of shrubs. Ad, Ac, Rg, Cg, and G are present in small amounts. No gullies but active sheet erosion. Burroweed all forming hummocks. Photo just prior to grubbing of mesquite. See C-251. 2/14/38. 400-D.
Download Photo (2,634,352 bytes)
Photo Archive No. 175.1.1938.03
C-251. SA 104C. P S 175, Mesquite Area, N W corner of area cut and grubbed. See C-214. 3/25/38. 400-D.
Download Photo (2,516,190 bytes)
Photo Archive No. 175.1.1948.06
6-48. A48-89. P.S. 175 repeat photo area 104C. Afr shows a slight decrease, cholla has come in, grass density much increased over 1938. Agl, Bro, Adi and others such as Tca, Hco, etc. The area gets more grazing use than the surrounding areas. w/k2 filter 1/50:22. SRER. Culley. 10H(3)b. Not exact field of view as in earlier photos. NOTE: Photos A48-90 and A48-91 also archived under this number but not included on the web page are the same view taken w/o filter 1/50:29 and w/a filter 1/25:14, respectively.
Download Photo (2,932,535 bytes)
Photo Archive No. 175.1.1960.03
T-193. 30 Mar 60. SRER, P.S. #175. 10H3b.
Download Photo (1,170,605 bytes)
Photo Archive No. 175.1.1987.07
PS 175. Azimuth 170. July 15, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.
Download Photo (1,202,419 bytes)
Photo Archive No. 175.1.2000.04
PS 175. April 10, 2000, 4:00 p.m. Facing south. Azimuth 170. Pasture 12B. Plus X, ASA 125 film. 35mm lens focal length. Witness next to 10' Prosopis velutina; in northwest corner of cleared area, about 1/4 mile south of main road. Use 1979 aerial photos to find cleared area. PS 277 is northeast of this PS. Prosopis velutina alive; Eragrostis lehmanniana, Haplopappus tenuisectus; Muhlenbergia porteri under Prosopis velutina. M. McClaran.
Download Photo (2,409,714 bytes)
Photo Archive No. 175.1.2007.03
PS. 175. 15 March 2007. Facing southwest, Azimuth 204. Pasture 12B. Elevation 1029 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above witness. Mesquite alive. Many dead burroweed, about half are alive. Cholla, prickly pear, Pima pineapple cactus (1), and hedgehog cacti. Lehmann lovegrass dominant grass, also Bouteloua aristidoides common. Cottontop and bush muhly under center mesquite. Compared to 2000, less grass and burroweed now. M. McClaran photographer, M. McGregor assistant.
Download JPEG Photo (5,836 KB)
Download RAW Photo (16,317 KB)