The 30' tall southern U.S. border wall is a deadly hazard that severs essential wildlife corridors. Organ Pipe Cactus National Monument, Arizona, between US and Mexico. (200304_4560)
Saguaro cactus (Carnegiea gigantea) next to border wall in Organ Pipe Cactus National Monument, Arizona. (200304_4233)
Border of Mexico at Organ Pipe Cactus National Monument, Arizona. (191103-1153)
Border wall between United States and Mexico at Organ Pipe Cactus National Monument in Arizona. Saguaro cactus (Carnegiea gigantea). (191104-3549)
Dusty perimeter road at sunrise next to border wall in Organ Pipe Cactus National Monument, Arizona. (200305_4664)
Sunset looking south into Mexico from Organ Pipe Cactus National Monument, Arizona next to US/Mexican border. (200307_5585)
Monument Hill before blasting rocks along border to clear space for a 30' wall at Organ Pipe Cactus National Monument, Arizona US/Mexico border. (191103-2962)
Monument Hill after blasting rocks along border to clear space for a 30' wall at Organ Pipe Cactus National Monument, Arizona US/Mexico border. (200304_4586)
Black vultures (Coragyps atratus) on saguaro cactus, Organ Pipe Cactus National Monument, Arizona. (191104-3273)
A nightime look through the border wall as trucks travel along Mexico's Highway 2. Photo taken from Organ Pipe Cactus National Monument, Arizona. (200304_4633)
People who illegally crossed the Mexican border into the United States waiting to be transported by the border patriol along the road to Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona. (191103-3178)
Black vulture perched on saguaro cactus next to Border between United States and Mexico at Organ Pipe Cactus National Monument, Arizona. (191104-3290)
Water on the way via the ditch that feeds into Quitobaquito Spring, Organ Pipe Cactus National Monument. (191104-162011)
Cactus wren (Campylorhynchus brunneicapillus) perched on ocotillo branch (Fouquieria splendens). Perched near Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico. (200303_3930)
Sawed off saguaro cactus (Carnegiea gigantea) at twilight in Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico. (200303_1937)
Wendy & Ron Shattil photographing at Organ Pipe Cactus National Monument, Arizona at night next to the border wall between US and Mexico. (200305-03050122)
Silhouette of saguaro cactus (Carnegiea gigantea) through border wall from Organ Pipe Cactus National Monument, Arizona. (200305_4985)
View into Mexico and Highway 2 across pre-wall border from Organ Pipe Cactus National Monument, Arizona. (200305_4886)
Black Phoebe (Sayornis nigricans) Quitobaquito Springs at Organ Pipe Cactus National Monument, Arizona. (191103-3125)
Border wall between United States and Mexico at Organ Pipe Cactus National Monument in Arizona. (191103-3010)
Cactus Wren (Campylorhynchus brunneicapillus) perched on saguaro at Organ Pipe Cactus National Monument, Arizona. (191104-3633)
Border fence near Quitobaquito Springs in Organ Pipe Cactus National Monument, Arizona. (191104-1587)
Border wall east of Highway 85 at Organ Pipe Cactus National Monument, Arizona next to US/Mexican border. (200308_5838)
Quitobaquito Springs at Organ Pipe Cactus National Monument, Arizona near Mexican border. (191103-3084-Pano)
Saguaro cactus and border wall at Organ Pipe Cactus National Monument, Arizona. (191104-1242)
Truck convoy driving along border wall to construction areas in Organ Pipe Cactus National Monument, Arizona. (200304_2041)
Post-sunset in Organ Pipe Cactus National Monument, Arizona near the border between US and Mexico. Saguaro cactus (Carnegiea gigantea). (200307_5654)
Water truck spraying dirt border road during construction at Organ Pipe Cactus National Monument, Arizona. (200307_5376)
Water tank truck receiving water. (200309_2660)
Border wall constuction from the Sonoyta, Mexican side of the border looking into Organ Pipe Cactus National Monument in Arizona. (191104-1407)
Great horned owl nesting in saguaro (Carnegiea gigantea) cactus near border wall at Organ Pipe Cactus National Monument, Arizona. (200310_6064)
Border wall and saguaro cactus in Organ Pipe Cactus National Monument, Arizona. (191104-1534)
Water on the way via the ditch that feeds into Quitobaquito Spring, Organ Pipe Cactus National Monument. (191104-091308)
American coot (Fulica americana) swimming in Quitobaquito Springs in Organ Pipe Cactus National Monument, Arizona near border with Mexico. (191104-3594)
Endangered Sonoyta mud turtle (Kinosternon sonoriense longifemorale) in Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona next to US/Mexican border. (200308_5752)
Anna's hummingbird (Calypte anna) at Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona. (191104-3424)
northern phainopepla (Phainopepla nitens), perched near Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico. (200307_5389)
Water on the way via the ditch that feeds into Quitobaquito Spring, Organ Pipe Cactus National Monument. (191104-091212)
Boundary monument #170 at Organ Pipe Cactus National Monument, Arizona along the border between US and Mexico. (200305_4723)
30' high border wall at dusk from Organ Pipe Cactus National Monument, Arizona, between US and Mexico. (200305_5021)
Redtail hawk nesting in saguaro cactus (Carnegiea gigantea) in Organ Pipe Cactus National Monument, Arizona near the border between US and Mexico. (200304_4486)
Boundary monument #170 at Organ Pipe Cactus National Monument, Arizona along the border between US and Mexico. (200305_4731)
Black vulture (Coragyps atratus) wiping beak on saguaro cactus, Organ Pipe Cactus National Monument, Arizona. (191104-3244)
Border between United States and Mexico at Organ Pipe Cactus National Monument, Arizona. (191104-3231)
Border wall constuction from the Sonoyta, Mexico side of the border looking into Organ Pipe Cactus National Monument in Arizona. (191104-3484)
Monarch butterfly (Danaus plexippus) on mesquite branch at Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona. (191104-3401)
Dust rising from perimeter road in Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico. (200305_4758)
Post-sunset in Organ Pipe Cactus National Monument, Arizona near the border between US and Mexico. Saguaro cactus (Carnegiea gigantea). (200306_5313)
Say's phoebe (Sayornis phoebe) near Quitobaquito Springs and Mexican border at Organ Pipe Cactus National Monument, Arizona. (191105-3868)
Black vultures (Coragyps atratus) on saguaro cactus, Organ Pipe Cactus National Monument, Arizona. (191104-1256)
Great horned owl nesting in saguaro (Carnegiea gigantea) cactus near border wall at Organ Pipe Cactus National Monument, Arizona. (200310_6057)
Anna's hummingbird (Calypte anna) at Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona. (191104-3416)
Post-sunset in Organ Pipe Cactus National Monument, Arizona near the border between US and Mexico. Saguaro cactus (Carnegiea gigantea). (200307_5553)
Border between United States and Mexico at Organ Pipe Cactus National Monument in Arizona. (191103-2954)
Water tanker entering Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico to work on border wall. (200304_4095)
Truck driving toward construction area in Organ Pipe Cactus National Monument, Arizona next to the border wall between US and Mexico. (200305_4752)
Full moon rising over saguaro (Carnegiea gigantea) cactus near border wall at Organ Pipe Cactus National Monument, Arizona. (200308_5937)
Post-sunset scene in Organ Pipe Cactus National Monument, Arizona near the border between US and Mexico. Saguaro cactus (Carnegiea gigantea). (200306_5182)
Hillside near Quitobaquito Springs at Organ Pipe Cactus National Monument, Arizona next to the border between US and Mexico. (200308_5856)
Saguaro cactus (Carnegiea gigantea) next to border wall in Organ Pipe Cactus National Monument, Arizona. (200304_4201)
Endangered Sonoyta mud turtle (Kinosternon sonoriense longifemorale) in Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona next to US/Mexican border. (200308_5755)
Anna's hummingbird (Calypte anna) at Quitobaquito Springs, Organ Pipe Cactus National Monument, Arizona., Organ Pipe Cactus National Monument, Arizona., Organ Pipe Cactus National Monument, Arizona. (191104-3431)
Water on the way via the ditch that feeds into Quitobaquito Spring, Organ Pipe Cactus National Monument. (191104-090732)
Saguaro cactus, Organ Pipe Cactus National Monument, Arizona. (191104-3663)
Gray Vireo (Vireo vicinior). (191104-3638)
Border wall constuction from the Sonoyta, Mexico side of the border looking into Organ Pipe Cactus National Monument in Arizona side of the border across from Organ Pipe Cactus National Monument in Arizona. (191104-3454)
Chihuahuan Raven (Corvus cryptoleucus) flying over border, from Mexico. Organ Pipe Cactus National Monument, Arizona. (191105-3719)
Saguaro cactus Carnegiea gigantea) on Mexican side of the border fence south of Organ Pipe Cactus National Monument, Arizona. (191104-3357)
Quitobaquito Springs in Organ Pipe Cactus National Monument, Arizona. (191105-1707)
Sign at parking area near Quitobaquito Springs in Organ Pipe Cactus National Monument, Arizona. (191104-1613)
Great horned owl nesting in saguaro (Carnegiea gigantea) cactus near border wall at Organ Pipe Cactus National Monument, Arizona. (200310_6069)
Transplanting a saguaro cactus (Carnegiea gigantean) to make way for the border wall at Organ Pipe Cactus National Monument, Arizona. (191104-1394)
Cactus Wren (Campylorhynchus brunneicapillus) perched on yucca plant (Yucca arizonica) at Organ Pipe Cactus National Monument, Arizona. (191104-3648)
Transplanted and braced saguaro cactus (Carnegiea gigantea) at Organ Pipe Cactus National Monument, Arizona. (191105-1680)
Quitobaquito Springs at Organ Pipe Cactus National Monument, Arizona near Mexican border. (191103-1159)
Black vulture (Coragyps atratus) on saguaro cactus, Organ Pipe Cactus National Monument, Arizona near border with Mexico. (191105-3754)
Organ Pipe Cactus National Monument, Arizona, along the southern border between US and Mexico. (200304_4437-Pano)
Organ Pipe Cactus National Monument, Arizona, along the southern border between US and Mexico. (200304_4470)
30' high Border wall at night in Organ Pipe Cactus National Monument, Arizona. (200305_2315)
Border wall constuction from the Sonoyta, Mexico side of the border looking into Organ Pipe Cactus National Monument in Arizona. (191104-3477)
Sunset, Organ Pipe Cactus National Monument. (191104-1624)
Border wall constuction between Sonoyta, Mexico and Organ Pipe Cactus National Monument in Arizona. (191104-3512)
Saguaro cactus (Carnegiea gigantea) removed for replanting to make way for border wall construction at Organ Pipe Cactus National Monument, Arizona. (191104-3579-Pano)