Santa Rita Experimental Range
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Photo Station #081



AUG19170 AUG 1917 1

Photo Archive No. 81.1.1917.08

Temporary No. 6. Permanent No. 36908A. Santa Rita Range Reserve. Pasture 6. Made by R.L. Hensel on Aug, 1917, at 2 pm. Using stop No. 32. Direction N. Light Clear. General view of Rothrocks grama range looking north in pasture 6. Photo Sta #81. 400-B.

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APR19190 APR 1919 1

Photo Archive No. 81.1.1919.04

95. Temporary No. P4. Permanent No. 40736A. Santa Rita Range Reserve. East of Jk about 25 feet. Made by R.L. Hensel on 25 day of Apr, 1919 at 12:30 pm. Using stop No.45. Direction N. Light Brt 1/2 sec. Shows poppy field which later in the summer supports the heaviest stand of Rothrocks grama. Compare this with views taken in same place in August. Compare with 246588, 36908A, 260859, 328874. Photo Sta #81. 400-B.

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JUN19300 JUN 1930 1

Photo Archive No. 81.1.1930.06

Temp No. 630. No. 246588. Photograph taken in Pasture 6 showing east corner of Jackrabbit Station and present growth of burro weed to be compared with photograph No. 40736A taken in April 1919. Photo by Santa Rita R.R. 6-16-30. Photo Sta #81. Also compare 260859 and 328874 & 36908A. 400-B.

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OCT19311 OCT 1931 1

Photo Archive No. 81.1.1931.10

No. 260859. Temp. No. 826. Photograph on east side of Jackrabbit Station showing heavy summer growth of forage to be compared with Photo No. 40736A. 10/13/31. 4 P.M. 1/2 x 32. Photo by S.R.E.R. Photo Sta #81. Compare with 40736A, 246588, 328874, 36908A. 400-B.

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SEP19350 SEP 1935 1

Photo Archive No. 81.1.1935.09

Perm. No. 328874. Temp. No. 2092. Photograph on east side of Jackrabbit Station, showing heavy growth of forage. Retake of 260859 taken in 1931. To be compared. Photo by Cribbs of S.R.E.R. 9/11/35. Exp. 1/5 - 35 - 8 - CP. Photo Sta #81. Compare with 36908A, 40736A, 246588, 260859. 400-B.

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JUN19480 JUN 1948 1

Photo Archive No. 81.1.1948.06

6-48. A48-52. P.S. 81 repeat photo. Increase in size of mesquite, heavy stand of burroweed. Grass stand poor. Bro, Agl, Ber, and others in scattered stands. SRER. Culley. w/o filter 1/50:32. 10H(3)b. NOTE: Photos A48-53 and A48-54 also archived under this number but not included on the web page are the same view taken w/k filter 1:32 and w/k filter 1/2:32, respectively.

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NOV19500 NOV 1950 1

Photo Archive No. 81.1.1950.11

11/50. R-229. Santa Rita Exp. Range, Ariz. Repeat of Photo station 81. H.G. Reynolds. 10H(3)b.

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MAY19840 MAY 1984 1

Photo Archive No. 81.1.1984.05

PS 81. Azimuth 10. May 3, 1984. RFB. Honeywell Pentax 35mm camera. 35mm WA lens. f:8-11 1/125 20'. 1:00 P.M. Robert F. Buttery.

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FEB19880 FEB 1988 1

Photo Archive No. 81.1.1988.02

PS 81. Az 10. Feb. 10, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:8 1/125 Inf. 3:25 P.M. Robert F. Buttery.

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NOV19981 NOV 1998 1

Photo Archive No. 81.1.1998.11

PS 81. November 21, 1998, 11:45 a.m. Facing north. Azimuth 10. Pasture 6A. 35mm lens focal length. Taken five feet in front of trees. McClaran photographer, no assistant.

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081_1_2007_03 MAR 2007 1

Photo Archive No. 81.1.2007.03

PS. 081. 9 March 2007. Facing north, Azimuth 10. Pasture 6A. Elevation 1155 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post with tag in place. Camera placed above post. Mesquite alive, many dead burroweed, prickly pear present. Grasses are cottontop, bush muhly, Lehmann lovegrass, black grama, and threeawns. Less grass, burroweed, and prickly pear than 1998. M. McClaran photographer, no assistant.

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081_1_2011_03 MAR 2011 1

Photo Archive No. 81.1.2011.03

PS. 081. 14 March 2011. 10:30 AM. Facing north, Azimuth 10. Pasture 6A. Elevation 1147 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post with tag in place. Camera placed above post. Mesquite alive, many alive burroweed but not thriving, prickly pear present. Grasses are cottontop, bush muhly, Lehmann lovegrass (fourth most abundant perennial grass), black grama, and threeawns. More grass, burroweed, and prickly pear than 2007. M. McClaran photographer, A. Dalke assistant.

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081_1_2017_03 MAR 2017 1

Photo Archive No. 81.1.2017.03

PS. 081. 13 March 2017. 10:33 AM. Facing north, Azimuth 10. Pasture 6A. Elevation 1147 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post with tag in place. Camera placed above post. Mesquite alive, burroweed, prickly pear and chainfruit cholla, blue palo verde in center background behind mesquite present. Grasses are cottontop, bush muhly, Lehmann lovegrass, black grama, Sporobolus, and threeawns; and Setaria beneath mesquite. Compared to 2011, more burroweed and less grass, and cholla in right midground is dead. M. McClaran photographer, K. Hawkes assistant.

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081_1_2023_03 MAR 2023 1

Photo Archive No. 81.1.2023.03

PS. 081. 06 March 2023. 11:22 AM. Facing north, Azimuth 10. Pasture 6A. Elevation 1147 m. ISO 250, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post with tag in place. Camera placed above post. Mesquite alive, burroweed, prickly pear and chainfruit cholla, blue palo verde in center background behind mesquite present. The mesquite tree present at the far corner of the exclosure does not appear until 1948. Two palo verde plants present about 40 m from the witness post. Grasses are cottontop (now dominant, large plants and new recruits), bush muhly, Lehmann lovegrass, black grama, cane beardgrass, tanglehead, and threeawns; and Setaria beneath mesquite. Compared to 2017, more burroweed plants and bigger sizes, more grass mass and cover especially cottontop, cholla is larger, decline in prickly pear, added cane beardgrass and tanglehead grasses, and lost Sporobolus. M. McClaran photographer, A. Gorlier assistant.

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Last updated - August 2023
Mitchel McClaran - mcclaran@u.arizona.edu