Santa Rita Experimental Range
Repeat Photography


site map

Photo Station #181


MAR381_1 MAR 1938 1

Photo Archive No. 181.1.1938.03.1

C-222. P.S. 181. Study Area #133, NW corner, 18 inch contour furrow area. Grass density not over 0.02, badly depleted. Photo just prior to trenching. See C-267. 3/10/38. 301.

Download Photo (2,259,818 bytes)


MAR381_2 MAR 1938 1

Photo Archive No. 181.1.1938.03.2

C-267. P.S. 181. Study Area #133. Northwest corner of 18 inch contour furrow area. See C-222. 3/28/38. 301.

Download Photo (2,064,886 bytes)


NOV20001 NOV 2000 1

Photo Archive No. 181.1.2000.11

PS 181. November 21, 2000, 11:00 a.m. Facing southeast. Pasture 2S. ASA 125 Plus X film. 35mm lens focal length. Fence post is in photo as in March 10, 1938, about 200 paces west of road 486. Rocks on soil surface following 1938 root-plowing. Eragrostis lehmanniana is dominant grass; snakeweed dominant shrub. Scattered burroweed; Muhlenbergia porteri under larger mesquites. M. McClaran.

Download Photo (2,463,312 bytes)


[Return to SRER Home Page]

Last updated - 12 January 2001
Mitchel McClaran - mcclaran@u.arizona.edu