Santa Rita Experimental Range
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Photo Station #277



SEP19480 SEP 1948 1

Photo Archive No. 277.1.1948.09

A48-228. Photo station 277, pasture 12B, looking north. Occasional bunches Tca. Fair cover annual grasses. Poor growth and all dry. 9/7.

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MAR19600 MAR 1960 1

Photo Archive No. 277.1.1960.03

T-192. 30 Mar 60. SRER, P.S. 277. 10H3b.

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OCT19840 OCT 1984 1

Photo Archive No. 277.1.1984.10

PS 277. Azimuth 4. Oct. 31, 1984. RFB. Honeywell Pentax 35mm camera. 35mm WA lens. f:11 1/125 30'. 8:20 A.M. Robert F. Buttery.

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FEB19880 FEB 1988 1

Photo Archive No. 277.1.1988.02

PS 277. Az 4. Feb. 2, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:2.8 1/125 Inf. 4:10 P.M. Robert F. Buttery.

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APR20001 APR 2000 1

Photo Archive No. 277.1.2000.04

PS 277. April 10, 2000, 3:30 p.m. Facing north. Azimuth 4. Pasture 12B. Plus X, 125 ASA film. 35mm lens focal length. Witness is right next to pasture fence, just off road. Eragrostis lehmanniana, Haplopappus tenuisectus. Prosopis velutina alive. M. McClaran.

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277_1_2007_03 MAR 2007 1

Photo Archive No. 277.1.2007.03

PS. 277. 15 March 2007. Facing north, Azimuth 04. Pasture 12B. Elevation 1034 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, 0.25 m from pasture fence, camera above witness. Mesquite alive, small mesquite blocks foreground view. Small blue palo verde left-center foreground. Burroweed bottom center. Most burroweed dead or in poor shape. Bouteloua aristidoides and Lehmann lovegrass scattered. One tanglehead center. Prickly pear and cholla cacti. Compared to 2000, less grass, and less burroweed. M. McClaran photographer, M. McGregor assistant.

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277_1_2013_03 MAR 2013 1

Photo Archive No. 277.1.2013.03

PS. 277. 20 March 2013. 2:05 pm. Facing north, Azimuth 0. Pasture 12B. Elevation 1031 m. ISO 160, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post present, 0.25 m from pasture fence, camera above witness. Mesquite alive, small mesquite blocks foreground view. Small blue palo verde left-center foreground. Cholla in front of prickly pear. Barrel cactus present.Small burroweed common. Bouteloua aristidoides and Lehmann lovegrass scattered. Compared to 2007, less grass, and new burroweed. M. McClaran photographer, K. Hawkes assistant.

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SEP19481 SEP 1948 2

Photo Archive No. 277.2.1948.09

A48-229. Photo station 277, pasture 12B, looking east. Occasional bunches Tca. Fair cover annual grasses. Poor growth and all dry. 9/7.

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OCT19841 OCT 1984 2

Photo Archive No. 277.2.1984.10

PS 277. Azimuth 72. Oct. 31, 1984. RFB. Honeywell Pentax 35mm camera. 35mm WA lens. f:8 1/125 30'. 8:15 A.M. Robert F. Buttery.

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FEB19881 FEB 1988 2

Photo Archive No. 277.2.1988.02

PS 277. Az 72. Feb. 2, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:2.8 1/125 Inf. 4:15 P.M. Robert F. Buttery.

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APR20002 APR 2000 2

Photo Archive No. 277.2.2000.04

PS 277. April 10, 2000, 3:30 p.m. Facing east. Azimuth 72. Pasture 12B. Plus X, 125 ASA film. 35mm lens focal length. Witness is right next to pasture fence, just off road. Palo verde has grown considerably; Eragrostis lehmanniana, Haplopappus tenuisectus; Prosopis velutina alive. M. McClaran.

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277_2_2007_03 MAR 2007 2

Photo Archive No. 277.2.2007.03

PS. 277. 15 March 2007. Facing north, Azimuth 04. Pasture 12B. Elevation 1034 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, 0.25 m from pasture fence, camera above witness. Mesquite alive, small mesquite blocks left-foreground view. Blue palo verde left-center midground. More than 50% of burroweed dead. Bouteloua aristidoides only grass in open areas. Prickly pear present as one plant in distant center. Compared to 2000, less grass now. M. McClaran photographer, M. McGregor assistant.

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277_2_2013_03 MAR 2013 2

Photo Archive No. 277.2.2013.03

PS. 277. 20 March 2013. 2:12 pm. Facing eastnortheast, Azimuth 65. Pasture 12B. Elevation 1031 m. ISO 160, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post present, 0.25 m from pasture fence, camera above witness. Mesquite alive, small mesquite blocks left-foreground view. Blue palo verde left-center midground. Buffelgrass now present under mesquite center foreground. Prickly pear present as one plant in distant center, also barrel cactus and cholla present. Flag in distant center identify Township/Range survey marker. Compared to 2007, more grass now, especially bush muhly under large mesquite as well as buffelgrass arrival; burroweed skeletons missing. M. McClaran photographer, K. Hawkes assistant.

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Last updated - June 2013
Mitchel McClaran - mcclaran@u.arizona.edu