Santa Rita Experimental Range
Repeat Photography

Photo Station #126

Photo Archive No. 126.1.1948.06

6-48. A48-38. P.S. 126. 1st picture looking N. Grass stand fairly good. Few burroweed. SRER. Culley. 10H(3)b.

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Photo Archive No. 126.1.1951.09

PS 126. B-51-42. (Post driven to 2 1/2' ht). Looking NE. 50-32-13-3/4". Repeat of A-48-38. Bohning, SRER. 26 Sept 1951.

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Photo Archive No. 126.1.1985.07

PS 126. Azimuth 24. July 17, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery.

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Photo Archive No. 126.1.2000.04

PS 126. April 24, 2000, 1:00 p.m. Facing northeast. Azimuth 24. Pasture 21. ASA 135, Plus X film. 35mm lens focal length. Fencepost 2 1/2', no tag. North side of road about 200'. Burned in 1994. Grass is Eragrostis lehmanniana. Calliandra eriophylla. Large trees in background alive, not burned in fire; left midground died after 1994 fire. No burroweed. M. McClaran.

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Photo Archive No. 126.1.2007.03

PS. 126. 28 March 2007. Facing northeast, Azimuth 24. Pasture 21. Elevation 1238 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive, and large mesquite in center midground, in wash, did not burn in 1994 fire. Other mesquite above wash in foreground, many top-killed in fire and resprouted. Velvet pod mimosa distant center, before large mesquite; also Calliandra with leaves and flowers emerged. Prickly pear and cholla cacti present. Small Lehmann lovegrass dominant with black grama and slender grama. Compared to 2000, less grass and foreground mesquite much larger now. M. McClaran photographer, A. Nafus assistant.

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Photo Archive No. 126.1.2012.03

PS. 126. 12 March 2012, 11:58 AM. Facing northeast, Azimuth 24. Pasture 21. Elevation 1224 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive with some 2011 leaves remaining, and large mesquite in center midground, in wash, did not burn in 1994 fire. Other mesquite above wash in foreground, many top-killed in fire and resprouted. Velvet pod mimosa distant center, before large mesquite; also Calliandra with leaves and flowers emerged. Also present, poppies in bloom and Krameria, prickly pear and cholla cacti. Small Lehmann lovegrass dominant with black grama and slender grama on slope. Compared to 2007, more grass, mainly Lehmann lovegrass and some black grama; many new burroweed; and foreground mesquite much larger now. M. McClaran photographer, A. Dalke and K. Hawkes assistants.

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Photo Archive No. 126.1.2018.03

PS. 126. 05 March 2018, 11:05 AM. Facing northeast, Azimuth 24. Pasture 21. Elevation 1224 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive with some 2017 leaves remaining, and large mesquite in center midground, in wash, did not burn in 1994 fire. Other mesquite above wash in foreground, many top-killed in fire and resprouted. Velvet pod mimosa distant center, before large mesquite; also Calliandra with leaves and flowers not yet emerged. Also present, Krameria, prickly pear and cholla cacti. Lehmann lovegrass dominant with black grama and slender grama on slope, in the open find cottontop, threeawn and bristlegrass. Compared to 2012, more grass cover, mainly Lehmann lovegrass and some black grama; larger burroweed plants; and foreground mesquite larger. M. McClaran photographer, K. Landreville assistant.

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Photo Archive No. 126.2.1937.03

Permanent No. 344394. Temporary No. 2700. Photo Sta. No. 126. Looking west from point near the SE corner of the Burroweed plot near Foothill Sta. Showing a few scattered mature burroweed plants and no burroweed reproduction in a .2 stand of Rg, Bf, Ad, and G. The soil is porous and there is no erosion. Burroweed is slow to invade into this type of range. Mesquites are scattered and very little Mes reproduction shows on the area. This view is typical of the gently sloping mesas near this area and is at the upper limit of the burroweed at the present time. This area will be cleared. Photo by Cribbs, S.R.E.R. 3/4/37. 400-B.

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Photo Archive No. 126.2.1948.06

6-48. A48-37. P.S. 126. Repeat looking W. Grass cover appears about the same as in 1937 though it may have decreased slightly. Big increase in burroweed and in both size and number of mesquite. SRER. Culley. 10H(3)b.

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Photo Archive No. 126.2.1951.09

P.S. 126. B-51-41. (Post driven down to 2 1/2' ht.). Looking west. 50-32-13 3/4". Repeat of 344394. Bohning, SRER. 26 Sept 1951.

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Photo Archive No. 126.2.1985.07

PS 126. Azimuth 290. July 17, 1985. RFB. Canon AE-1 camera (35mm). 35mm WA lens. Robert F. Buttery. Not exact field of view as in earlier photos.

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Photo Archive No. 126.2.2000.04

PS 126. April 24, 2000, 1:00 p.m. Facing west. Azimuth 290. Pasture 21. ASA 135, Plus X film. 35mm lens focal length. Fencepost 2 1/2', no tag. North side of road about 200'. Burned in 1994. Center midground tree was topkilled in 1994 fire, resprouted; background trees killed. No burroweed. M. McClaran.

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Photo Archive No. 126.2.2007.03

PS. 126. 28 March 2007. Facing west, Azimuth 290. Pasture 21. Elevation 1238 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive, few burroweed present. In 1937, the large mesquite in midground left are now skeletons that were probably killed in the 1994 fire: large skeleton right distant in current photo is probably one of the large mesquites at right in 1937 photo. Prickly pear present. Small Lehmann lovegrass dominant in distant grass patch. Black grama one live plant in front center. Setaria under large skeletons. Compared to 2000, much less grass now. M. McClaran photographer, A. Nafus assistant.

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Photo Archive No. 126.2.2012.03

PS. 126. 12 March 2012, 11:53 AM. Facing west, Azimuth 290. Pasture 21. Elevation 1224 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive, three burroweed present. In 1937, the large mesquite in midground left are now skeletons that were probably killed in the 1994 fire: large skeleton visible in 2007 at right distant, was cut to ground, and it was probably one of the large mesquites at right in 1937 photo. Prickly pear present. Lehmann lovegrass dominant in distant grass patch, cottontop second most dominant grass, and plains bristlegrass under mesquite. Compared to 2007, slight increase in cottontop and patches of annual grasses in open areas, but black grama plant is missing from front center. M. McClaran photographer, A. Dalke and K. Hawkes assistants.

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Photo Archive No. 126.2.2018.03

PS. 126. 05 March 2018, 11:53 AM. Facing west, Azimuth 290. Pasture 21. Elevation 1224 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above, about 40 m north of Road 411. Mesquite alive, three burroweed present. In 1937, the large mesquite in midground left are now skeletons that were probably killed in the 1994 fire: large skeleton visible in 2007 at right distant, was cut to ground, and it was probably one of the large mesquites at right in 1937 photo. Prickly pear present. Lehmann lovegrass dominant in distant grass patch, cottontop second most dominant grass, and threeawn and plains bristlegrass present. Barrel cactus under large mesquite in the left. Many burroweed plants. Compared to 2012, more grass plants and grass cover, more burroweed plants and larger sizes, more prickly pear plants and size; and ant hole (bottom center) inactive now but active in 2012. M. McClaran photographer, K. Landreville assistant.

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