Santa Rita Experimental Range
Repeat Photography



site map

Photo Station #051



JUN19361 JUN 1936 1

Photo Archive No. 51.1.1936.06

Perm. No. 329078. Temp. No. 2356. Photo Station #51, looking south and showing comparatively few burroweeds on this area at the present time. To be checked up later for possible spread of burroweed over this area. 2-32-8"-A-CP. Photo by Cribbs, S.R.E.R. 6/29/36. 400-B.

Download Photo (2,899,061 bytes)



JUL19510 JUL 1951 1

Photo Archive No. 51.1.1951.07

July 1951. R-267. Santa Rita Experimental Range. Repeat of photo point 51. H.G. Reynolds. 10H3b.

Download Photo (2,596,782 bytes)



AUG19850 AUG 1985 1

Photo Archive No. 51.1.1985.08

PS 51. Azimuth 200. Aug. 28, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

Download Photo (1,042,385 bytes)



JUL20001 JUL 2000 1

Photo Archive No. 51.1.2000.07

PS 51. July 6, 2000, 10:00 a.m. Facing south. Azimuth 200. Pasture 6A. ASA 125, Plus X film. 35mm lens focal length. Fencepost marked; on ridge, surrounded by catclaw. Grass is Eragrostis lehmanniana; Digitaria californica under mesquite. M. McClaran.

Download Photo (2,634,082 bytes)



051_1_2007_03 MAR 2007 1

Photo Archive No. 051.1.2007.03

PS. 051. 30 March 2007. Facing south, Azimuth 200. Pasture 6A. Elevation 1235 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, catclaw bottom center and right foreground, ocotillo with flowers emerging, Calliandra no leaves or flowers. Prickly pear, cholla, and barrel cacti. Lehmann lovegrass is dominant grass, also find black grama, tanglehead, Setaria, sideoats grama; cottontop and bush muhly under larger mesquite. Larger trees from 1936 photo are present and behind ocotillo and small mesquite. In 1936 photo, plants on distant ridge are most likely large Celtis, catclaw, and graythorn plants; only occasionally mesquite. Compared to 2000, less grass, and more prickly pear. M. McClaran photographer, F. Mashiri assistant.

Download JPEG Photo (6,559 KB)

Download RAW Photo (17,438 KB)



051_1_2009_03_03 MAR 2009 1

Photo Archive No. 051.1.2009.03

PS. 051. 19 March 2009. Facing south, Azimuth 200. Pasture 6A. Elevation 1235 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, catclaw bottom center and right foreground, ocotillo with flowers emerging, Calliandra no leaves or flowers. Velvet pod mimosa in front right not yet with leaves. One burroweed next to collapsed prickly pear. Prickly pear, cholla, and barrel cacti. Lehmann lovegrass is dominant grass, also find black grama, tanglehead, Setaria, sideoats grama; cottontop and bush muhly under larger mesquite. Larger trees from 1936 photo are present and behind ocotillo and small mesquite. In 1936 photo, plants on distant ridge are most likely large Celtis, catclaw, and graythorn plants; only occasionally mesquite. Compared to 2007, Lehmann lovegrass increase; grass increase generally; prickly pear decrease especially patch in center; and add tanglehead to grass list. The same trees that have first leaves in 2007, have first leaves this year. M. McClaran photographer, A. Peterson assistant.

Download JPEG Photo (6,821 KB)

Download RAW Photo (17,265 KB)



JUN19360 JUN 1936 2

Photo Archive No. 51.2.1936.06

Perm. No. 329077. Temp. No. 2355. Photo Station #51, east of road leading up to East Tank and approximately 1/3 mile north of small hill north of East Tank. Looking southwest and showing comparatively few burroweeds at this point. 2-32-8"-A-CP. Photo by Cribbs, S.R.E.R. 6/29/36. 400-B.

Download Photo (2,693,814 bytes)



AUG19851 AUG 1985 2

Photo Archive No. 51.2.1985.08

PS 51. Azimuth 248. Aug. 28, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

Download Photo (922,389 bytes)



JUL20002 JUL 2000 2

Photo Archive No. 51.2.2000.07

PS 51. July 6, 2000, 10:00 a.m. Facing west. Azimuth 248. Pasture 6A. ASA 125, Plus X film. 35mm lens focal length. Fencepost marked; on ridge, surrounded by catclaw. Grass is Eragrostis lehmanniana; Digitaria californica under mesquite. One dead burroweed in foreground-center died this year; otherwise, no other burroweed plants in area. M. McClaran.

Download Photo (2,572,548 bytes)



051_2_2007_03 MAR 2007 2

Photo Archive No. 051.2.2007.03

PS. 051. 30 March 2007. Facing west, Azimuth 248. Pasture 6A. Elevation 1235 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, scattered catclaw including foreground right , 90 burroweed alive, Zinnia common. Prickly pear and cholla cacti. Lehmann lovegrass is dominant grass, also find black grama, tanglehead, sideoats grama, and cottontop; cottontop and bush muhly under larger mesquite. Large mesquite in 1936 photo are present and visible behind small mesquite in foreground. Large barrel in 2000 left foreground is not present and no evidence remains of past existence on site. Compared to 2000, less grass, and missing barrel cactus. M. McClaran photographer, F. Mashiri assistant.

Download JPEG Photo (5,631 KB)

Download RAW Photo (15,984 KB)



051_2_2009_03 MAR 2009 2

Photo Archive No. 051.2.2009.03

PS. 051. 19 March 2009. Facing west, Azimuth 248. Pasture 6A. Elevation 1235 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, scattered catclaw including foreground right and left. Zinnia and burroweed present. Prickly pear and cholla cacti. Lehmann lovegrass is dominant grass, also find black grama, tanglehead, tanglehead, sideoats grama, and cottontop; cottontop, Setaria, and bush muhly under larger mesquite. Large mesquite in 1936 photo are present and visible behind small mesquite in foreground. Compared to 2007, more grass, especially Lehmann lovegrass and added Setaria and tanglehead to list; collapse of prickly pear under distant left mesquite and partial collapse of prickly pear in center midground; and small decline in cholla. The same trees that have first leaves in 2007, have first leaves this year. M. McClaran photographer, A. Peterson assistant.

Download JPEG Photo (5,330 KB)

Download RAW Photo (14,981 KB)



[Return to SRER Home Page]

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