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Photo Station #251



19021 1902 1

Photo Archive No. 251.1.1902

PS 251. 1902. Griffiths No. 1020. Stone's sheep grazing on the mountain side South of Pyramid Hill. He has them herded in this situation because on the broader level stretches below there are extensive growths of Bouteloua aristidoides and Aristida americana, the seeds of which work into their hoofs, causing bad sores, and, in extreme cases, the death of the animals.

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JUL19480 JUL 1948 1

Photo Archive No. 251.1.1948.07

7-48. A48-154. P.S. 251 retake of Griffiths' #1020 at Red tank in pasture 6A. Increase in pricklypear, rocks are more exposed and apparently ground vegetation has been greatly reduced. Tag on the 6th post W. of the gate in trap. SRER. Culley. 10H(3)b.

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JUL19870 JUL 1987 1

Photo Archive No. 251.1.1987.07

PS 251. Azimuth 30. July 24, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

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JUN20001 JUN 2000 1

Photo Archive No. 251.1.2000.06

PS 251. June 9, 2000, 2:20 p.m. Facing northeast. Azimuth 30. Pasture 6A. Plus X, ASA 125 film. 35mm lens focal length. Fencepost present; is part of fenceline around water; photo taken from post. Half of large mesquite on berm dead. Grass is Lehmann lovegrass; small shrub is burroweed. Ocotillo has increased on hillside. M. McClaran.

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251_1_2007_03 MAR 2007 1

Photo Archive No. 251.1.2007.03

PS. 251. 30 March 2007. Facing northeast, Azimuth 30. Pasture 6A. Elevation 1194 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present and part of fenceline at dirt tank, camera above. Mesquite alive, about 90% burroweed alive. Catclaw and Celtis midground right. Distant hillside has ocotillo. No water in dirt tank. Prickly pear and cholla present. Lehmann lovegrass is dominant grass, also find cottontop and Setaria. Compared to 2000, less grass, and more cholla. M. McClaran photographer, F. Mashiri assistant.

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251_1_2009_03 MAR 2009 1

Photo Archive No. 251.1.2009.03

PS. 251. 19 March 2009. Facing northeast, Azimuth 30. Pasture 6A. Elevation 1194 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present and part of fenceline at dirt tank, camera above. Mesquite alive, burroweed alive. Catclaw and Celtis midground right. Distant hillside has ocotillo. No water in dirt tank. Prickly pear and cholla present. Lehmann lovegrass is dominant grass, also find cottontop and Setaria. Compared to 2007, increase in Lehmann lovegrass and cottontop; prickly pear are larger; and extensive stem girdling in small mesquite in foreground. The same trees that have first leaves in 2007, have first leaves this year. M. McClaran photographer, A. Peterson assistant.

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JUN20002 JUN 2000 2

Photo Archive No. 251.2.2000.06

PS 251. June 9, 2000, 2:20 p.m. Facing northeast. Azimuth 30. Pasture 6A. Plus X, ASA 125 film. 35mm lens focal length. Fencepost present; is part of fenceline around water; photo taken approx. 25 ft. in front of post. Half of large mesquite on berm dead. Grass is Lehmann lovegrass; small shrub is burroweed. Ocotillo has increased on hillside. M. McClaran.

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251_2_2007_03 MAR 2007 2

Photo Archive No. 251.2.2007.03

PS. 251. 30 March 2007. Facing northeast, Azimuth 30. Pasture 6A. Elevation 1194 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present and part of fenceline at dirt tank, camera 10 m northeast of witness to avoid mesquite blocking view. Mesquite alive, about 90% burroweed alive. Catclaw and Celtis midground right. Distant hillside has ocotillo. No water in dirt tank. Prickly pear and cholla present. Lehmann lovegrass is dominant grass, also find cottontop and Setaria. Compared to 2000, less grass, and more cholla. M. McClaran photographer, F. Mashiri assistant.

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251_2_2009_03 MAR 2009 2

Photo Archive No. 251.2.2009.03

PS. 251. 19 March 2009. Facing northeast, Azimuth 30. Pasture 6A. Elevation 1194 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present and part of fenceline at dirt tank, camera 10 m northeast of witness to avoid mesquite blocking view. Mesquite alive, and burroweed alive. Catclaw and Celtis midground right. Distant hillside has ocotillo. No water in dirt tank. Prickly pear and cholla present. Lehmann lovegrass is dominant grass, also find cottontop and Setaria. Large trees present in 1948 photograph are present in 2009. The same trees that have first leaves in 2007, have first leaves this year. Compared to 2007, more Lehmann lovegrass, and extensive stem girdling on mesquite. M. McClaran photographer, F. Mashiri assistant.

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