Santa Rita Experimental Range
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Photo Station #053



JUN19360 JUN 1936 1

Photo Archive No. 53.1.1936.06

Perm. No. 329081. Temp. No. 2359. Photo Station #53. 75 feet west of Ruelas Road and approximately 200 feet north of north line fence of protected Plot #38. Looking south and showing heavy stand of burroweed on the left of small wash with practically no burroweed on the right. To be checked in later years for possible spread of burroweeds in area now free. 2-32-8"-G-CP. Photo by Cribbs, 6/30/36. 400-B.

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JUL19510 JUL 1951 1

Photo Archive No. 53.1.1951.07

July 1951. R-269. Santa Rita Experimental Range. Repeat of photopoint 53. H.G. Reynolds. 10H3b.

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SEP19850 SEP 1985 1

Photo Archive No. 53.1.1985.09

PS 53. Azimuth 165. Sept, 6. 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

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APR20001 APR 2000 1

Photo Archive No. 53.1.2000.04

PS 53. April 21, 2000, 10:00 a.m., somewhat overcast. Facing south. Azimuth 165. Pasture 6A. Plus X, ASA 125 film. 35mm lens focal length. About 500' south of PS 249. Witness present, marked, about 100' west of road, but difficult to see from road due to dense vegetation. Large plants are all mesquite. Acacia greggii in center foreground. Ferocactus wislizenii in mid-ground. Slope in midground dominated by Bouteloua eriopoda. Eragrostis lehmanniana at top of slope. Bouteloua curtipendula in drainage. M. McClaran.

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053_1_2007_04 APR 2007 1

Photo Archive No. 053.1.2007.04

PS. 053. 02 April 2007. Facing south, Azimuth 180. Pasture 6A. Elevation 1258 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, catclaw bottom center. Scattered dead and live burroweed about 10 plants total. Prickly pear, barrel and cholla cacti. Black grama dominant, also find cottontop, Setaria, threeawns, and Lehmann lovegrass. Mesquite present in 1936 are present, but small mesquite block view of them. Compared to 2000, more prickly pear. M. McClaran photographer, C. McMurtry assistant.

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053_1_2011_03 MAR 2011 1

Photo Archive No. 053.1.2011.03

PS. 053. 16 March 2011. 11:40 AM. Facing south, Azimuth 188. Pasture 6A. Elevation 1250 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Mesquite alive, catclaw bottom center. Five live burroweed. Prickly pear, barrel and cholla cacti. Black grama dominant, also find cottontop, Setaria, threeawns, and Lehmann lovegrass. Bush muhly under mesquite. Mesquite present in 1936 are present, but small mesquite block view of them. Compared to 2007, more grass mainly cottontop and Lehmann lovegrass, and prickly pear in poor condition. M. McClaran photographer, A. Dalke assistant.

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Last updated - April 2011
Mitchel McClaran - mcclaran@u.arizona.edu