Santa Rita Experimental Range
Repeat Photography

Photo Station #183

Photo Archive No. 183.1.1938.03.1

C-225. P.S. 183. Study Area #133, 30 foot subsoiling area, N end of lines. Grass almost entirely depleted only scattered clumps of Rg. Prior to subsoiling. See C-264. 3/11/38. 301.

Download Photo (2,834,383 bytes)

Photo Archive No. 183.1.1938.03.2

C-264. P.S. 183. Study Area #133. North end of 30 foot interval subsoiling. See C-225. 3/28/38. 301.

Download Photo (2,132,776 bytes)

Photo Archive No. 183.1.1987.09

PS-183. Azimuth 180. Sept. 22, 1987. RFB. Canon AE-1 camera. 35mm WA lens. Robert F. Buttery.

Download Photo (1,258,186 bytes)

Photo Archive No. 183.1.2000.11

PS 183. November 13, 2000. Facing south. Azimuth 180. Pasture 2S. ASA 125 Plus X film. 35mm lens focal length. Fence post at southern edge of mesquite canopy, ~ 10' high and 15' diameter. Eragrostis lehmanniana dominates. Muhlenbergia porteri and some Setaria macrostachya under mesquite. Lycium shrubs in midground; occasional Eragrostis curvula. M. McClaran.

Download Photo (2,709,362 bytes)

Photo Archive No. 183.1.2007.03

PS. 183. 23 March 2007. Facing south, Azimuth 180. Pasture UA Cell. Elevation 1134 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, some dead of burroweed, including center bottom. Lycium (one dead one live) right center behind first large mesquite. Setaria beneath that large mesquite. No cacti in view. Small Lehmann lovegrass dominate open areas with some Boer’s lovegrass. Under larger mesquites find cottontop, bush muhly and Setaria. Cloudy conditions. Compared to 2000, less burroweed, and slightly less grass now. M. McClaran photographer, no assistant.

Download JPEG Photo (7,052 KB)

Download RAW Photo (18,349 KB)

Photo Archive No. 183.1.2009.03

PS. 183. 17 March 2009. Facing south, Azimuth 180. Pasture UA Cell. Elevation 1133 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, small amount of burroweed. Setaria beneath that large mesquite. No cacti in view. Under larger mesquites find cottontop, bush muhly and Setaria. Compared to 2007, Boer’s lovegrass missing, two Lycium in background center now dead with small burroweed growing at their bases, cottontop and Lehmann lovegrass increase. M. McClaran photographer, A. Peterson assistant.

Download JPEG Photo (7,438 KB)

Download RAW Photo (14,545 KB)

Photo Archive No. 183.1.2015.03

PS. 183. 18 March 2015. 12:09 pm. Facing south, Azimuth 180. Pasture UA Cell. Elevation 1133 m. ISO 250, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Mesquite alive, and leaves emerging. small amount of burroweed. Mesquite in 1938 photo is still alive. Setaria beneath that large mesquite. Under larger mesquites find cottontop, bush muhly and Setaria; and in open areas find cottontop, Lehmann lovegrass and Boer’s lovegrass. Compared to 2009, Boer’s lovegrass now present, prickly pear now present, and decrease in perennial grass. M. McClaran photographer, K. Hawkes assistant.

Download JPEG Photo (14,175 KB)

Download RAW Photo (26,886 KB)

Photo Archive No. 183.1.2021.03

PS. 183. 12 March 2021. 1:12 pm. Facing south, Azimuth 180. Pasture UA Cell. Elevation 1133 m. ISO 160, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Four large and two small mesquite present in 1938 photo are still alive after April 2017 fire. Large mesquite in center was killed by 2017 fire. Under larger mesquites find cottontop, bush muhly and Setaria; and in open areas find cottontop, Lehmann lovegrass (now dominant grass) and Boer’s lovegrass. Compared to 2015, increase in perennial grass with Lehmann lovegrass being dominant; and prickly pear and burroweed not present after the fire in 2017. M. McClaran photographer, A. Gorlier assistant.

Download JPEG Photo (17,486 KB)

Download RAW Photo (28,643 KB)