Santa Rita Experimental Range
Repeat Photography



site map

Photo Station #160



NOV19371 NOV 1937 1

Photo Archive No. 160.1.1937.11

Perm. No. 357834. C-122. Whitehouse contour furrow area, Photo Station 160. Lower end of worked area, showing first furrow (14). Furrow planted to Bouteloua chondrosioides but dry weather has prevented any results so far from artificial seeding. 11/1937. 5x7. 301. Enc. 109.

Download Photo (2,391,374 bytes)



APR19601 APR 1960 1

Photo Archive No. 160.1.1960.04

T-235. P.S. 160. S.R.E.R. 6 Apr 60. 10H3b.

Download Photo (1,567,444 bytes)



JUL20001 JUL 2000 1

Photo Archive No. 160.1.2000.07

PS 160. July 6, 2000, 9:00 a.m. Facing northwest. Azimuth 337. Pasture 4. ASA 125, Plus X film. 35mm lens focal length. Fencepost marked. Burned in 1994. Taken from fencepost. Evidence of furrowing; ridges are visible. Filling in with soil upslope of the ridges. Shrub in bottom right is Ephedra trifurca; dead shrub in bottom left is mesquite. Eragrostis lehmanniana and Calliandra eriophylla in understory. M. McClaran.

Download Photo (2,778,124 bytes)



160_1_2007_03 MAR 2007 1

Photo Archive No. 160.1.2007.03

PS. 160. 26 March 2007. Facing northwest, Azimuth 337. Pasture 4. Elevation 1137 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera 5 m north of witness to avoid young mesquite at witness. Live mesquite. Distant find, ocotillo, Ephedra, Calliandra (with leaves and flowers emerging). Very distant, find desert broom, velvet pod mimosa, and Lycium. Cholla cacti. Lehmann lovegrass dominant, scattered sprucetop grama plants. Under mesquite find tanglehead and Lehmann lovegrass. No evidence of 2005 fire. Compared to 2000, mesquite larger now. M. McClaran photographer, M. McGregor assistant.

Download JPEG Photo (6,033 KB)

Download RAW Photo (16,600 KB)



160_1_2010_03 MAR 2010 1

Photo Archive No. 160.1.2010.03

PS. 160. 17 March 2010 10:45 AM. Facing northwest, Azimuth 340. Pasture 4. Elevation 1128 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Live mesquite. Distant find, ocotillo, Ephedra and Calliandra. Very distant, find desert broom, velvet pod mimosa, and Lycium. Cholla cacti. Lehmann lovegrass dominant, scattered sprucetop grama plants. Under mesquite find tanglehead and Lehmann lovegrass. No evidence of 2005 fire. Compared to 2007, mesquite has lost some stems. M. McClaran photographer, A. Dalke assistant.

Download JPEG Photo (11,750 KB)

Download RAW Photo (33,754 KB)



JUL20002 JUL 2000 2

Photo Archive No. 160.2.2000.07

PS 160. July 6, 2000, 9:00 a.m. Facing northwest. Azimuth 337. Pasture 4. ASA 125, Plus X film. 35mm lens focal length. Fencepost marked. Burned in 1994. Taken about 10 ft. in front of post. Evidence of furrowing; ridges are visible. Filling in with soil upslope of the ridges. Shrub in bottom right is Ephedra trifurca; dead shrub in bottom left is mesquite. Eragrostis lehmanniana and Calliandra eriophylla in understory. M. McClaran.

Download Photo (2,641,670 bytes)



160_2_2007_03 MAR 2007 2

Photo Archive No. 160.2.2007.03

PS. 160. 26 March 2007. Facing northwest, Azimuth 337. Pasture 4. Elevation 1137 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera 5 m north of witness to avoid young mesquite at witness. Live mesquite. Distant find, ocotillo, Ephedra, Calliandra (with leaves and flowers emerging). Very distant, find desert broom, velvet pod mimosa, and Lycium. Cholla cacti. Lehmann lovegrass dominant, scattered sprucetop grama plants. Under mesquite find tanglehead and Lehmann lovegrass. No evidence of 2005 fire. Contours from 1937 still visible. Compared to 2000, less grass now. M. McClaran photographer, M. McGregor assistant.

Download JPEG Photo (6,105 KB)

Download RAW Photo (17,618 KB)



160_2_2010_03 MAR 2010 2

Photo Archive No. 160.2.2010.03

PS. 160. 17 March 2010 10:55 AM. Facing northwest, Azimuth 337. Pasture 4. Elevation 1137 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera 2 m north of witness to avoid young mesquite at witness and above a white rebar. Live mesquite. Distant find, ocotillo, Ephedra and Calliandra. Very distant, find desert broom, velvet pod mimosa, and Lycium. Cholla cacti. Lehmann lovegrass dominant, scattered sprucetop grama plants. Tanglehead plant in front left. Under mesquite find tanglehead and Lehmann lovegrass. No evidence of 2005 fire. Contours from 1937 still visible. Mesquite in right midground died since 2007. Compared to 2007, ocotillo larger and less grass after dry 2009 summer. M. McClaran photographer, A. Dalke assistant.

Download JPEG Photo (13,815 KB)

Download RAW Photo (35,251 KB)



[Return to SRER Home Page]

Last updated - May 2010
Mitchel McClaran - mcclaran@u.arizona.edu