Direction: 1

• Photo Archive No. 001.1.1932.09

  Image

  

  Date

  September 1932

  Direction

  1

  Temp. No. 1135. Permanent No. 276409. Gravelly Ridge Project - Photo Station No. 1 looking North West. Typical gravelly ridge in semi-desert type, supporting little vegetation other than Browse species, burro weed, and annual grasses and weeds. 1-Ayenia pusilla, 3-Krameria glandulosa, 34-aplopappus, 35-Prosopis velutina, 36-Opuntia frigida. Elev. 3100, 9/16/32. Photo by Santa Rita Exp. Range. See: 276410, 328928, 328929 & 2453. 104-D. (Encl. #44)

  SEP19321.TIF

• Photo Archive No. 001.1.1935.10

  Image

  

  Date

  October 1935

  Direction

  1

  Temp. No. 2146. Perm. No. 328928. Gravelly Ridge Project -- Photo Station No. 1. Looking Northwest. Typical Gravelly Ridge in semi-desert type supporting browse species, burro weed and annual grasses and weeds as vegetative cover. Retake of 276409 taken in 1932. To be compared. Photo by Cribbs of S.R.E.R. 10/14/35. Exp. 1/5 - 32 - 8 - CP. See also: 276410 & 2453 (104-D). (Encl #44)

  OCT19351.TIF

• Photo Archive No. 001.1.1936.08

  Image

  

  Date

  August 1936

  Direction

  1

  Permanent No. 344271. Temporary No. 2453. Photo Station #1. Gravelly Ridge Study area. Repeat of Temp 1135 (Perm 276409). After 3 years of protection there is but slight change in this area; although, possibly, a few more annuals are present. Photo by Cribbs, S.R.E.R. 8/25/36. Compare also 2146 (104-D).

  AUG19361.TIF

• Photo Archive No. 001.1.1960.03

  Image

  

  Date

  March 1960

  Direction

  1

  T-168. 12 Mar 1960. SRER, P.S. 1. 10H3b.

  MAR19601.TIF

• Photo Archive No. 001.1.1985.07

  Image

  

  Date

  July 1985

  Direction

  1

  PS 1. Az 344. July 2, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

  JUL19851.TIF

• Photo Archive No. 001.1.1998.09

  Image

  

  Date

  September 1998

  Direction

  1

  PS 1. September 3, 1998. Facing north. Gravelly Ridge. Euryops invasion since 1960. Taken in far south end of East exclosure. Pentax 35mm camera with an f/8 50mm lens and color slide film. Dan Robinett.

  SEP19981.TIF

• Photo Archive No. 001.1.2000.07

  Image

  

  Date

  July 2000

  Direction

  1

  PS 1. July 13, 2000, 10:15 a.m. Facing north. Azimuth 344. Pasture 16. ASA 125, Plus X film. 35mm lens focal length. Euryops removal in 1999 is apparent because plants present in 1998 photo are missing. M. McClaran.

  JUL20001.TIF

• Photo Archive No. 001.1.2007.03

  Image

  

  Date

  March 2007

  Direction

  1

  PS. 001. 21 March 2007. Facing north, Azimuth 344. Pasture 16. Gravelly Ridge Study Area. Elevation 936 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above witness. Mesquite alive far right and distant. Small shrubs Krameria, Senna and Zinnia. Blue paloverde left foreground, Epherda behind mesquite far right. Ocotillo present. Whitethorn acacia midground far right. Bouteloua aristidoides, cottontop threeawn grasses. Ephedra center distant with barrel cactus. Windy and cloudy conditions. Compared to 2000, more grass and cholla now. M. McClaran photographer, A. Nafus assistant.

  001_1_2007_03.JPG

  001_1_2007_03.dng

• Photo Archive No. 001.1.2010.03

  Image

  

  Date

  March 2010

  Direction

  1

  PS. 001. 15 March 2010 12:05 PM. Facing north, Azimuth 335. Pasture 16. Gravelly Ridge Study Area. Elevation 930 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above witness. Mesquite alive far right and distant. Small shrubs Krameria, Senna and Zinnia. Blue paloverde left foreground is now dead, and the prickly pear behind it is also dead, Epherda behind mesquite far right. Ocotillo present. Whitethorn acacia midground far right. Bouteloua aristidoides, cottontop threeawn grasses. Ephedra center distant with pima pineapple cactus. Windy conditions. Compared to 2007, dead Palo verde and prickly pear far left, and a slight increase in perennial grass density. M. McClaran photographer, A. Dalke assistant.

  001_1_2010_03.JPG

  001_1_2010_03.dng

• Photo Archive No. 001.1.2016.03

  Image

  

  Date

  March 2016

  Direction

  1

  PS. 001. 13 March 2016 11:45 AM. Facing north, Azimuth 345. Pasture 16. Gravelly Ridge Study Area. Elevation 930 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above witness. Mesquite alive far right and distant. Small shrubs Krameria, Senna, Calliandra, and Zinnia. Dead blue paloverde left foreground has fallen since 2010. Epherda behind mesquite far right. Ocotillo present. Whitethorn acacia midground far right. Bouteloua aristidoides, cottontop threeawn grasses. Ephedra center distant with pima pineapple cactus. Windy conditions. Compared to 2010, more three awn density in foreground, and slight decline in cholla. M. McClaran photographer, K. Hawkes and D. Landreville assistants.

  001_1_2016_03.JPG

  001_1_2016_03.dng

• Photo Archive No. 001.1.2022.03

  Image

  

  Date

  March 2022

  Direction

  1

  PS. 001. 11 March 2022 2:06 PM. Facing north, Azimuth 345. Pasture 16. Gravelly Ridge Study Area. Elevation 930 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above witness. Mesquite alive in far right and distant. Blue Palo verde present and desert hackberry. Small shrubs Krameria, Senna, and Calliandra. Epherda found in far left and center. Ocotillo present. Whitethorn acacia midground far right. Bouteloua aristidoides and threeawn grasses. Cholla cacti present, and prickly pear cactus in left mid ground. Windy conditions. Compared to 2016, contuned decrease of cholla density and cover, prickly pear now present, and missing cottontop, Zinnia, and Pima Pineapple cactus. More annual grasses form wet summer 2021. M. McClaran photographer, A. Gorlier assistant.

  001_1_2022_03.JPG

  001_1_2022_03.dng