Santa Rita Experimental Range
Repeat Photography

Photo Station #090

Photo Archive No. 090.1.1926.09

Temp. No. 306. 213451. At Mesa Station (Enc. 27.) showing growth in Division 25 as compared to that on outside range adjacent, under yearlong grazing use. 9/30/26. Santa Rita R.R. 1/2 x 32 1/2. Photo Sta No. 90. Compare 249877. 104-D.

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Photo Archive No. 090.1.1930.08

Temp. No. 705. Permanent No. 249877. Photograph showing Division 25 at Mesa Station Encl #27 adjacent area heavily covered with burro weed to be compared with Photo No. 213451. August 1930. Photo Sta #90. 104-D.

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Photo Archive No. 090.1.1985.07

PS 90. Azimuth 297. July 17, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

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Photo Archive No. 090.1.2000.11

PS 90. November 9, 2000, 4:20 p.m. Facing northwest. Azimuth 297. Pasture 2S. ASA 125 Plus X film. 35mm lens focal length. Exclosure 27, southwest corner. Fencepost outside exclosure. Exclosure intact. Eragrostis lehmanniana dominant grass inside and outside exclosure. Burroweed inside and outside. Setaria, Muhlenbergia porteri, Digitaria californica under mesquite. M. McClaran.

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Photo Archive No. 090.1.2007.03

PS. 090. 23 March 2007. Facing northwest, Azimuth 297. Pasture UA Cell. Exclosure 27. Elevation 1138 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above witness. Mesquite alive, more than 50% of burroweed dead. Prickly pear present. Lehmann lovegrass dominant in open. Behind foreground mesquite find black grama outide exclosure, and cottontop inside exclosure. Bush mughly under mesquite inside and outside exclosure. Cloudy conditions. Compared to 2000, less grass and burroweed now. M. McClaran photographer, no assistant.

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Photo Archive No. 090.1.2009.03

PS. 090. 17 March 2009. Facing northwest, Azimuth 297. Pasture UA Cell. Exclosure 27. Elevation 1135 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above witness. Mesquite alive, burroweed present between fence and mesquite. Many skeletons of dead burroweed including foreground left. Prickly pear present. Lehmann lovegrass dominant in open. Behind foreground mesquite find black grama outside exclosure, and cottontop inside exclosure. Bush muhly under mesquite inside and outside exclosure. Large tree in distant center of 1926 photograph is now dead with part of skeleton present. Compared to 2007, increase in bush muhly, cottontop and Setaria. M. McClaran photographer, A. Peterson assistant.

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Photo Archive No. 090.1.2015.03

PS. 090. 18 March 2015. 12:30 pm. Facing northwest, Azimuth 297. Pasture UA Cell. Exclosure 27. Elevation 1135 m. ISO 250, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above witness. Mesquite alive, and leaves emerging. Baccharis brachyphylla present between fence and mesquite. Prickly pear and cholla present. Lehmann lovegrass dominant in exclosure. Behind foreground mesquite find black grama outside exclosure, and cottontop inside exclosure. Bush muhly and Setaria under mesquite inside and outside exclosure. Large tree in distant center of 1926 photograph is now dead with part of skeleton present. Compared to 2009, less perennial grass and more prickly pear. M. McClaran photographer, K. Hawkes assistant.

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Photo Archive No. 090.1.2021.03

PS. 090. 29 March 2021. 1:40 pm. Facing northwest, Azimuth 297. Pasture UA Cell. Exclosure 27. Elevation 1135 m. ISO 160, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above witness. Mesquite alive. Baccharis brachyphylla present between fence and mesquite. Prickly pear present. Lehmann lovegrass dominant in exclosure. Behind foreground mesquite find cottontop inside exclosure. Cottontop, bush muhly and Setaria under mesquite inside and outside exclosure. This area burned in April 2017. Large tree in distant center of 1926 photograph is now dead with part of skeleton present. Compared to 2015, following very dry and hot conditions between July 2020 and March 2021; more Lehmann lovegrass and cottontop, but less black grama and bush muhly; mesquite midground center dead from fire; prickly pear is much smaller after the fire. M. McClaran photographer, A. Gorlier assistant.

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