Santa Rita Experimental Range
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Photo Station #301



JAN19491 1949 1

Photo Archive No. 301.1.1949

A49-76. Photo station 301 at enc. 163, looking southeast. Afr, cacti, Pve. No Agl where there used to be a fair stand.

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OCT19541 OCT 1954 1

Photo Archive No. 301.1.1954.10

P.S. 301. B-54-78. Past. 5 on NW Rim Rd. looking to SE. Abundant annual grasses. 1/50-f22. Repeat of A-49-76. Bohning, SRER. 25 Oct. 54.

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AUG19600 AUG 1960 1

Photo Archive No. 301.1.1960.08

T-293. 3 Aug 60. SRER, P.S. 301, ESE. 10H3b.

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DEC19871 DEC 1987 1

Photo Archive No. 301.1.1987.12

PS-301. Azimuth 126. Dec. 3, 1987. RFB. Canon AE-1 camera. 35mm WA lens. Robert F. Buttery.

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APR20001 APR 2000 1

Photo Archive No. 301.1.2000.04

PS 301. April 3, 2000, 2:00 p.m. Facing southeast. Azimuth 126. Pasture 5N. Plus X, 125 ASA film. 35mm lens focal length. Drive to intersection of powerline road and Pasture 5N/5S boundary fence; walk towards Huerfano Butte; stay south of interior exclosure fence. Witness present, marked, painted fluorescent orange. All mesquite alive. Grasses are Eragrostis lehmanniana, Digitaria californica, Aristida, Muhlenbergia porteri; Gutierrezia sarothrae. M. McClaran.

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301_1_2007_03 MAR 2007 1

Photo Archive No. 301.1.2007.03

PS. 301. 13 March 2007. Facing northeast, Azimuth 45. Pasture 5S. Elevation 964 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above witness. Mesquite alive. Threeawn dominant grass by density, Lehmann lovegrass also common. Cottontop and bush muhly in open and under mesquite. Prickly pear, cholla are cacti. Snakeweed plants at bottom left. Many dead burroweed. Compared to 2000, much more grass, less burroweed, and larger prickly pear. M. McClaran photographer, no assistant.

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301_1_2009_03 MAR 2009 1

Photo Archive No. 301.1.2009.03

PS. 301. 16 March 2009. Facing northeast, Azimuth 45. Pasture 5S. Elevation 968 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above witness. Mesquite alive. Bouteloua aristidoides and threeawn dominant grasses by density. Cottontop and bush muhly in open and under mesquite. Prickly pear, and cholla are cacti. Snakeweed plants at bottom left. Many dead burroweed. Compared to 2007, cottontop more common, Lehmann lovegrass less common, and cacti size increase. M. McClaran photographer, A. Peterson assistant.

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JAN19490 1949 2

Photo Archive No. 301.2.1949

A49-77. Photo station 301, looking southwest. Afr, cacti, Pve. No Agl where there used to be a fair stand.

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OCT19540 OCT 1954 2

Photo Archive No. 301.2.1954.10

P.S. 301. B-54-79. Past. 5 on NW Rim Rd. looking SW. 1/50-f22. Repeat of A-49-77. Bohning, SRER. 25 Oct. 54.

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AUG19601 AUG 1960 2

Photo Archive No. 301.2.1960.08

T-294. 3 Aug 60. SRER, P.S. 301, W. 10H3b.

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DEC19870 DEC 1987 2

Photo Archive No. 301.2.1987.12

PS-301. Azimuth 240. Dec. 3, 1987. RFB. Canon AE-1 camera. 35mm WA lens. Robert F. Buttery.

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APR20002 APR 2000 2

Photo Archive No. 301.2.2000.04

PS 301. April 3, 2000, 2:00 p.m. Facing southwest. Azimuth 240. Pasture 5N. Plus X 125 ASA film. 35mm lens focal length. Drive to intersection of powerline road and Pasture 5N/5S boundary fence; walk towards Huerfano Butte; stay south of interior exclosure fence. Witness present, marked, painted fluorescent orange. Heteropogon contortus, Eragrostis lehmanniana, Haplopappus tenuisectus present; mesquite alive. M. McClaran.

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301_2_2007_03 MAR 2007 2

Photo Archive No. 301.2.2007.03

PS. 301. 13 March 2007. Facing southwest, Azimuth 240. Pasture 5S. Elevation 964 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above witness. Mesquite alive. Mesquite on left has Epherdra beneath. Blue palo verde far right. Threeawn dominant grass by density, Lehmann lovegrass also common. Cottontop common. Prickly pear, cholla are cacti. Many dead burroweed, but many still alive. Compared to 2000, more grass, less burroweed, dead prickly pear, and larger prickly pear. M. McClaran photographer, no assistant.

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301_2_2009_03 MAR 2009 2

Photo Archive No. 301.2.2009.03

PS. 301. 16 March 2009. Facing southwest, Azimuth 240. Pasture 5S. Elevation 968 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above witness. Mesquite alive. Mesquite on left has Epherdra beneath. Blue palo verde far right. Bouteloua aristidoides and threeawn dominant grasses by density. Cottontop common. Bush muhly under foreground left cholla. Prickly pear, cholla are cacti. Many dead burroweed, but many still alive. Ephedra in front left was present in 1948, as was palo verde in distant center behind mid center mesquite. Photo view has drifted to west (right) a few degrees since 1948 original. Compared to 2007, Lehmann lovegrass less common, no change in burroweed.and prickly pear increase in size. M. McClaran photographer, A. Peterson assistant.

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