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Photo Station #252



JUL19480 JUL 1948 1

Photo Archive No. 252.1.1948.07

7-48. A48-155. P.S. 252 first photo 50 feet west of the road to the Red tank about half way up from Helvetia road. Near quadrat WD 19. Looking NW. Fair stand of grass Ber, Agl, Hco, and others. Heavy growth of Afr and Pve. SRER. Culley. 10H(3)b.

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AUG19600 AUG 1960 1

Photo Archive No. 252.1.1960.08

T-283. 4 Aug 60. SRER, P.S. 252. 10H3b.

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JUL19870 JUL 1987 1

Photo Archive No. 252.1.1987.07

PS 252. Azimuth 348. July 24, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

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JUN20001 JUN 2000 1

Photo Archive No. 252.1.2000.06

PS 252. June 9, 2000, 3:00 p.m. Facing north. Azimuth 348. Pasture 6A. Plus X, ASA 125 film. 35mm lens focal length. Fencepost present and marked; NNW across wash from Red Tank along cattle trail approx. 0.25 mi. from Red Tank. Two catclaw in foreground. Lehmann lovegrass; burroweed. At a distance in center of old photos is graythorn, now surrounded by catclaw. Graythorn is smaller than in earlier photos. M. McClaran.

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252_1_2007_03 MAR 2007 1

Photo Archive No. 252.1.2007.03

PS. 252. 30 March 2007. Facing north, Azimuth 348. Pasture 6A. Elevation 1169 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, about 85% burroweed alive, Calliandra flowering. Prickly pear, cholla and barrel cacti present. Lehmann lovegrass is dominant grass, also find cottontop, tanglehead, and black grama; and Setaria and bush muhly under larger mesquite. In 1948 photo, the large plant in center distant was tall graythorn and catlcaw growing together, both lost height but are not dead in 2007. Dead mesquite in far right, was alive in 1948 photo. Compared to 2000, less grass and cholla, more prickly pear. M. McClaran photographer, F. Mashiri assistant.

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252_1_2009_03 MAR 2009 1

Photo Archive No. 252.1.2009.03

PS. 252. 19 March 2009. Facing north, Azimuth 348. Pasture 6A. Elevation 1179 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite, burroweed, and Calliandra alive. Prickly pear, cholla and barrel cacti present. Lehmann lovegrass is dominant grass, also find cottontop, tanglehead, and black grama; and Setaria and bush muhly under larger mesquite. In 1948 photo, the large plant in center distant was tall graythorn and catlcaw growing together, both lost height but are not dead in 2007. Dead mesquite in far right, was alive in 1948 photo. Compared to 2007 grass increase including Setaria, cottontop and Lehmann lovegrass; also extensive stem girdling. M. McClaran photographer, A. Peterson assistant.

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Last updated - August 2009
Mitchel McClaran - mcclaran@u.arizona.edu