Santa Rita Experimental Range
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Photo Station #247



JUL19480 JUL 1948 1

Photo Archive No. 247.1.1948.07

7-48. A48-147. P.S. 247 first photo E. side of road about 40 ft. distant and about 3/8 mile from gate between 10 and 7 looking NE. Poor grass density. Ber, Hco, Bfi and others. Very closely grazed. SRER. Culley. 10H(3)b.

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NOV19500 NOV 1950 1

Photo Archive No. 247.1.1950.11

11/50. R-231. Santa Rita Exp. Range, Ariz. Repeat of Photo station 247. H.G. Reynolds. 10H(3)b.

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SEP19520 SEP 1952 1

Photo Archive No. 247.1.1952.09

P.S. 247. B-52-15. Pasture 7 near Ruelas Ranch road. Looking NE. 50-45-13 3/4". Repeat of A-48-147. Bohning, SRER. 19 Sept. 1952.

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JUN19530 JUN 1953 1

Photo Archive No. 247.1.1953.06

P.S. 247. B-53-13. Past. 7 on Upper Helvetia Rd. Looking to NE. 30-45-13 3/4". Repeat of A48-147. Bohning, SRER. 12 June 1953.

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SEP19530 SEP 1953 1

Photo Archive No. 247.1.1953.09

P.S. 247. B-53-57. Past. 7 on Upper Helvetia Rd. Looking NE. 40-45-13 3/4". Repeat of A-48-147. Bohning, SRER. 15 Sept. 1953.

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JUN19540 JUN 1954 1

Photo Archive No. 247.1.1954.06

P.S. 247. B-54-25. Past. 7. Looking to NE. 25-45-13 3/4". Repeat of A-48-147. Bohning, SRER. 22 June 1954.

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SEP19540 SEP 1954 1

Photo Archive No. 247.1.1954.09

P.S. 247. B-54-60. Past. 7 looking to NE. 50-45-13 3/4". Repeat of A-48-147. Bohning, SRER. 10 Sept. 54.

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JUN19550 JUN 1955 1

Photo Archive No. 247.1.1955.06

P.S. 247. B-55-9. Past. 7 on upper Helvetia Rd. looking NE. 1/50-f45-50'. Repeat of A-48-147. Bohning, SRER. 20 June 1955.

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SEP19550 SEP 1955 1

Photo Archive No. 247.1.1955.09

P.S. 247. B-55-60. Past. 7 on upper Helvetia Rd. Looking NE. 1/45-f45-45'. Repeat of A-48-147. Bohning, SRER. 19 Sept. 55.

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JUN19560 JUN 1956 1

Photo Archive No. 247.1.1956.06

B-56-19. 6/20/56. SRER. P.S. 247 to northeast, Past. 7. Repeat of A-48-147 (1/50-f.22-25').

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OCT19560 OCT 1956 1

Photo Archive No. 247.1.1956.10

B-56-148. 10/20/56. SRER P.S. 247 to NE, Past. 7. Repeat of A-48-147 (1/40-f.22-40').

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OCT19610 OCT 1961 1

Photo Archive No. 247.1.1961.10

CA 842. 10/61. PS 247. Past. 7 on upper Helvetia Rd. looking NE. Repeat of A-48-147, B-54-60 and B-55-9.

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JUL19870 JUL 1987 1

Photo Archive No. 247.1.1987.07

PS 247. Azimuth 73. July 24, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

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JUL19991 JUL 1999 1

Photo Archive No. 247.1.1999.07

PS 247. July 20, 1999. Facing east. Azimuth 73. No witness post present. K. Widmer.

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247_1_2007_04 APR 2007 1

Photo Archive No. 247.1.2007.04

PS. 247. 02 April 2007. Facing northeast, Azimuth 73. Pasture 6E. Elevation 1346 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. Mesquite alive, small catclaw before fence and pipeline construction. Barrel cacti. Lehmann lovegrass dominant, scattered cottontop. Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. Poppies blooming in foreground. Compared to 1999, less grass, and more barrel cacti, and catclaw in former picture is still present behind view, and pipeline construction in foreground. M. McClaran photographer, C. McMurtry assistant.

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247_1_2011_03 MAR 2011 1

Photo Archive No. 247.1.2011.03

PS. 247. 16 March 2011. 1:05 PM. Facing northeast, Azimuth 65. Pasture 6E. Elevation 1340 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. Mesquite alive, small catclaw before fence and pipeline construction. Barrel cacti. Lehmann lovegrass dominant, scattered cottontop. Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. However, large mesquite to the right of the metal fence post and distant was alive in 1948. Compared to 2007, more grass and additional species including tanglehead, black grama and more barrel cacti; and prickly pear decline. M. McClaran photographer, A. Dalke assistant.

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247_1_2017_03 MAR 2017 1

Photo Archive No. 247.1.2017.03

PS. 247. 16 March 2011. 1:05 PM. Facing northeast, Azimuth 65. Pasture 6E. Elevation 1340 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. Mesquite alive, small catclaw before fence and pipeline construction. Barrel cacti. Lehmann lovegrass dominant, also find cottontop, tanglehead, sideoats, cane beardgass, and black grama; and bush muhly under large mesquite at left.Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. However, large mesquite to the right of the metal fence post and distant was alive in 1948. Compared to 2011, more grass and additional species including tanglehead, black grama and more barrel cacti; and prickly pear decline. M. McClaran photographer, A. Dalke assistant.

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247_1_2023_03 MAR 2023 1

Photo Archive No. 247.1.2023.03

PS. 247. 09 March 2023. 11:35 AM. Facing northeast, Azimuth 70. Pasture 6E. Elevation 1336 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. A better match with the older photos would be 10 m from rock cairn at 65 degree azimuth. Mesquite alive, small catclaw before fence. Lehmann lovegrass dominant, also find cottontop, tanglehead, sideoats, cane beardgass, black grama, and threeawn; and bush muhly under large mesquite at left. Old mesquites are missing because of removal treatment in Pasture 7 in late 1950s. However, large mesquite to the right of the metal fence post and distant was alive in 1948. Since 2017, no changes in grass mass; added threeawn; new cholla left mid-ground; new mesquite right mid-ground; and lost barrel cactus. M. McClaran photographer, A. Gorlier assistant.

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JUL19481 JUL 1948 2

Photo Archive No. 247.2.1948.07

7-48. A48-148. P.S. 247 first photo looking SE. Poor grass cover Ber, Hco, Bfi, and others closely grazed. SRER. Culley. 10H(3)b.

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SEP19521 SEP 1952 2

Photo Archive No. 247.2.1952.09

P.S. 247. B-52-16. Pasture 7 near Ruelas Ranch road. Looking SE. 50-45-13 3/4". Repeat of A-48-148. Bohning, SRER. 19 Sept. 1952.

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JUN19531 JUN 1953 2

Photo Archive No. 247.2.1953.06

P.S. 247. B-53-14. Past. 7 on Upper Helvetia Rd. Looking to SE. 40-45-13 3/4". Repeat of A48-148. Bohning, SRER. 12 June 1953.

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SEP19531 SEP 1953 2

Photo Archive No. 247.2.1953.09

P.S. 247. B-53-58. Past. 7 on Upper Helvetia Rd. Looking SE. 40-45-13 3/4". Repeat of A-48-148. Bohning, SRER. 15 Sept. 1953.

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JUN19541 JUN 1954 2

Photo Archive No. 247.2.1954.06

P.S. 247. B-54-24. Past. 7 looking to Southeast. 25-45-13 3/4". Repeat of A-48-148. Bohning, SRER. 22 June 1954.

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SEP19541 SEP 1954 2

Photo Archive No. 247.2.1954.09

P.S. 247. B-54-61. Past. 7 looking to SE. 45-45-13 3/4". Repeat of A-48-148. Bohning, SRER. 10 Sept. 54.

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JUN19551 JUN 1955 2

Photo Archive No. 247.2.1955.06

P.S. 247. B-55-10. Past. 7 on upper Helvetia Rd. Looking SE. 1/50-f45-45'. Repeat of A-48-148. Bohning, SRER. 20 June 1955.

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SEP19551 SEP 1955 2

Photo Archive No. 247.2.1955.09

P.S. 247. B-55-61. Past. 7 on upper Helvetia Rd. Looking SE. 1/45-f45-45'. Repeat of A-48-148. Bohning, SRER. 19 Sept. 1955.

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JUN19561 JUN 1956 2

Photo Archive No. 247.2.1956.06

B-56-20. 6/20/56. SRER, P.S. 247 to southeast. Past. 7. Repeat of A48-148 (1/50-f.22-25').

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OCT19561 OCT 1956 2

Photo Archive No. 247.2.1956.10

B-56-149. 10/20/56. SRER, P.S. 247 to SE, Past. 7. Repeat of A-48-148 (1/40-f.22-40').

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OCT19611 OCT 1961 2

Photo Archive No. 247.2.1961.10

CA 841. 10-61. PS 247. Past. 7 on upper Helvetia Rd. looking SE. Repeat of A-48-148, B-55-10, and B-55-61.

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JUL19871 JUL 1987 2

Photo Archive No. 247.2.1987.07

PS 247. Azimuth 147. July 24, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

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JUL19992 JUL 1999 2

Photo Archive No. 247.2.1999.07

PS 247. July 20, 1999. Facing southeast. Azimuth 147. No witness post present. K. Widmer.

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247_2_2007_04 APR 2007 2

Photo Archive No. 247.2.2007.04

PS. 247. 02 April 2007. Facing southeast, Azimuth 147. Pasture 6E. Elevation 1346 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. Mesquite alive, and pipeline construction in front of fence. Barrel cacti. Lehmann lovegrass dominant, scattered cottontop. Oldest mesquites missing because of removal treatment in Pasture 7 in late 1950s. Compared to 1999, less grass, and more barrel cacti, and pipeline construction in foreground. M. McClaran photographer, C. McMurtry assistant.

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247_2_2011_03 MAR 2011 2

Photo Archive No. 247.2.2011.03

PS. 247. 16 March 2011. 1:20 PM. Facing southeast, Azimuth 135. Pasture 6E. Elevation 1340 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. Mesquite alive. Barrel cacti. 3 foot tall stump of large mesquite in 1948 is still visible behind the live mesquite in the center of photo. Lehmann lovegrass dominant; cottontop, sideoats under larger mesquite. Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. Compared to 2007, more grass cover and add grass species including black grama, cane beardgrass and tanglehead. M. McClaran photographer, A. Dalke assistant.

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247_2_2017_03 MAR 2017 2

Photo Archive No. 247.2.2017.03

PS. 247. 16 March 2017. 1:30 PM. Facing southeast, Azimuth 135. Pasture 6E. Elevation 1336 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. A better match with the older photos would be 10 m from rock cairn at 65 degree azimuth. Mesquite alive. Barrel cactus. 3 foot tall stump of large mesquite in 1948 is still visible behind the live mesquite in the center of photo. Prickly pear under large mesquite. Lehmann lovegrass dominant; cottontop, tanglehead, cane beardgrass, black grama, threeawn, sideoats; and under large mesquite find Setaria and sideoats. Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. Compared to 2011, more grass mass and richness, and expansion of tanglehead patch in midground right in front of fence. M. McClaran photographer, K. Hawkes assistant.

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247_2_2023_03 MAR 2023 2

Photo Archive No. 247.2.2023.03

PS. 247. 09 March 2023. 11:35 AM. Facing southeast, Azimuth 135. Pasture 6E. Elevation 1336 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. No witness present, rock cairn constructed, camera above. Not exact match with 1987 and 1999 photos, but compromise location with those and earlier photos. A better match with the older photos would be 10 m from rock cairn at 65 degree azimuth. Mesquite alive. Barrel cactus. A 3 foot tall stump of large mesquite in 1948 is still visible behind the live mesquite in the center of photo. Prickly pear under large mesquite. Lehmann lovegrass dominant; cottontop, tanglehead, cane beardgrass, black grama, threeawn, sideoats; and under large mesquite found Setaria and sideoats. Old mesquites missing because of removal treatment in Pasture 7 in late 1950s. Compared to 2017, no change in total grass mass and cover; Lehmann lovegrass increase in mass and cover; and less cover and mass of tanglehead. M. McClaran photographer, A. Gorlier assistant.

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Last updated - August 2023
Mitchel McClaran - mcclaran@u.arizona.edu