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Photo Station #180



MAR381_1 MAR 1938 1

Photo Archive No. 180.1.1938.03.1

C-221. P.S. 180. Study Area #133, NE corner contour trenching area, 18 inch contours. Rg main grass with approximately 0.01 density. Very badly depleted. Good stand of burroweed. Photo prior to trenching. See C-266. 3/10/38. 301.

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MAR381_2 MAR 1938 1

Photo Archive No. 180.1.1938.03.2

C-266. P.S. 180. Study Area #133. Northeast corner of 18 inch contour furrow area. See C-221. 3/28/38. 301.

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NOV20001 NOV 2000 1

Photo Archive No. 180.1.2000.11

PS 180. November 21, 2000, 10:35 a.m. Facing southwest. Pasture 2S. ASA 125 Plus X film. 35mm lens focal length. About 50 paces west of road 486. Dominant grass is Eragrostis lehmanniana; some Gutierrezia sarothrae; under large mesquite are Muhlenbergia porteri, Digitaria californica and some burroweed. Rocks are on ground surface to right of large mesquite; they were exposed by root-plowing in 1938. M. McClaran.

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180_1_2007_03 MAR 2007 1

Photo Archive No. 180.1.2007.03

PS. 180. 23 March 2007. Facing southwest, Azimuth 210. Pasture 2SW. Elevation 1126 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, less than half of burroweed dead. Prickly pear present. Scattered snakeweed. Small Lehmann lovegrass dominate open areas. Cottontop, bush muhly and Setaria under larger mesquite. Cloudy conditions. Compared to 2000, less burroweed now. M. McClaran photographer, no assistant.

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180_1_2009_03 MAR 2009 1

Photo Archive No. 180.1.2009.03

PS. 180. 17 March 2009. Facing southwest, Azimuth 210. Pasture 2SW. Elevation 1126 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive. Burroweed present. Prickly pear present. Scattered snakeweed. Lehmann lovegrass dominant grass. Cottontop, bush muhly and Setaria under larger mesquite. Velvet pod mimosa in midground far left, was present in 2007 as well. Trees present in 1938 photo are still present, and two of those are visible in this photo. Very little change since 2007. M. McClaran photographer, A. Peterson assistant.

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