Santa Rita Experimental Range
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Photo Station #220



JAN19050 1905 1

Photo Archive No. 220.1.1905

Ca. 1905. Photo No. 3074.

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SEP19410 SEP 1941 1

Photo Archive No. 220.1.1941.09

A-1877. Photo Sta. No. 220. Retake of Photo No. 3074 originally taken by Griffiths about 1905. Mesquite has increased very noticeably. Ground cover appears lighter than in the early days and there has been an evident change in composition, some of the coarse grasses having replaced what was on the ground in 1902. (5x7) Sept. 1941.

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NOV19500 NOV 1950 1

Photo Archive No. 220.1.1950.11

11/50. R-237. Santa Rita Exp. Range, Ariz. Repeat of Photo Station 220. H.G. Reynolds. 10H(3)b.

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SEP19510 SEP 1951 1

Photo Archive No. 220.1.1951.09

PS 220. B-51-33. Looking NE. 35-32-13-3/4". Repeat of Griffith 3074. 25 Sept 51.

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MAR19840 MAR 1984 1

Photo Archive No. 220.1.1984.03

PS 200. Azimuth 360. March 21, 1984. RFB. Honeywell Pentax 35mm camera. 35mm wide angle lens. Kodak FX 135 film. f:8-11 1/125 15'. 3:30 P.M. Robert F. Buttery.

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FEB19880 FEB 1988 1

Photo Archive No. 220.1.1988.02

PS 220. Az 360. Feb. 16, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:8 1/125 Inf. 1:40 P.M. Robert F. Buttery.

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APR20001 APR 2000 1

Photo Archive No. 220.1.2000.04

PS 220. April 24, 2000, 2:40 p.m. Facing north. Azimuth 360. Pasture 9. ASA 135, Plus X film. 35mm lens focal length. Almost to end of road; follow fence back south to down gate; tagged fencepost across fence (30' east). Mesquites alive. Eragrostis lehmanniana dominant. Setaria macrostachya and Muhlenbergia porteri under mesquite. Barrel cactus right bottom of photo. Eriogonum wrightii. Two small catclaw at midground right. M. McClaran.

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220_1_2007_03 MAR 2007 1

Photo Archive No. 220.1.2007.03

PS. 220. 28 March 2007. Facing north, Azimuth 0. Pasture 9. Elevation 1253 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness, present, camera above. Mesquite alive, large top-killed from 1994 fire and resulting resprouts present. Calliandra leaves and flowers emerged, shrubby buckwheat, burroweed small shrubs. Prickly pear and barrel cacti. Lehmann lovegrass dominant, under mesquite find Setaria, cottontop, and bush muhly. Compared to 2000, less grass and mesquite is larger now. M. McClaran photographer, A. Nafus assistant.

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220_1_2012_03 MAR 2012 1

Photo Archive No. 220.1.2012.03

PS. 220. 12 March 2012, 3:35 PM. Facing north, Azimuth 0. Pasture 9. Elevation 1237 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness, present, camera above. Mesquite alive with some 2011 leaves remaining, large top-killed mesquite from 1994 fire resulting resprouts are present. Calliandra leaves and flowers not yet emerged, and shrubby buckwheat and Krameria plants present. Prickly pear and barrel cacti. Lehmann lovegrass dominant, and cottontop in open; also under mesquite find plains bristlegrass, cottontop, and bush muhly. Compared to 2007, more grass and smaller mesquite continue to increase in size. M. McClaran photographer, A. Dalke and K. Hawkes assistants.

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Last updated - August 2012
Mitchel McClaran - mcclaran@u.arizona.edu