Santa Rita Experimental Range
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Photo Station #066



JUL19360 JUL 1936 1

Photo Archive No. 66.1.1936.07

Permanent No. 344243. Temporary No. 2425. Photo Sta. 66. Up Florida Canyon, 300 yards southeast of gate. Heavily grazed range adjacent to Pasture 8. All old grass consumed, new grass just starting to show, some erosion beginning to show up. Photo by Cribbs, S.R.E.R. 7/23/36. 104-C.

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SEP19850 SEP 1985 1

Photo Archive No. 66.1.1985.09

PS 66. Azimuth 354. Sept. 13, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

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DEC20001 DEC 2000 1

Photo Archive No. 66.1.2000.12

PS 66. December 14, 2000, 1:30 p.m. Facing north. Azimuth 354. Forest Service pasture adjacent to Pasture 8. ASA 100 TMAX film. 35mm lens focal length. Fencepost present, but missing a tag. Photo matches 1985, but 1936 shows more foreground than 1985 and 2000. Ocotillo, agave, opuntia, sideoats, beardgrass, scattered Lehmann lovegrass. Trees are Mexican blue oak. Lehmann lovegrass common on hillside in distant center of photo, which faces south. M. McClaran.

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066_1_2007_04 APR 2007 1

Photo Archive No. 66.1.2007.04

PS. 066. 16 April 2007. Facing north, Azimuth 354. Elevation 1413 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, < 1 m tall, camera above. Witness placed next to large agave plant. Area burned in July 2005. Ocotillo, Calliandra, desert spoon, velvet pod mimosa common plants. Mexican blue oak in top right, same as in 1936. Prickly pear cactus present. Sideoats grama, sprangletop common grasses. Goldeneye (Viguiera sp.) dominates herbaceous layer. Compared to 2000, less grass, less agave and prickly pear, more Goldeneye (Viguiera sp.). M. McClaran photographer, M. McMurtry assistant.

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066_1_2012_03 MAR 2012 1

Photo Archive No. 66.1.2012.03

PS. 066. 13 March 2012, 12:22 PM. Facing north, Azimuth 354. Elevation 1430 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, < 1 m tall, camera above, and no number tag on witness. Area burned in July 2005. Ocotillo, Calliandra, desert spoon, velvet pod mimosa common plants. Mexican oregano is present. Mexican blue oak in top right, same plant as in 1936. Prickly pear cactus present. Sideoats grama, sprangletop common and cottontop are common grasses. Compared to 2007, more grass, less agave and prickly pear, and absence of goldeneye (Viguiera sp.); also ocotillo in left midground is dead and has fallen over. M. McClaran photographer, K. Hawkes assistant.

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