Santa Rita Experimental Range
Repeat Photography

Photo Station #051

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.

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Photo Archive No. 51.1.1951.07

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

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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.

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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.

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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.

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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.

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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.

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