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Organ Pipe Cactus National Monument is a U.S. national monument and
UNESCO The United Nations Educational, Scientific and Cultural Organization is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) aimed at promoting world peace and security through international coope ...
biosphere reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or ...
located in extreme southern
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
that shares a border with the
Mexican Mexican may refer to: Mexico and its culture *Being related to, from, or connected to the country of Mexico, in North America ** People *** Mexicans, inhabitants of the country Mexico and their descendants *** Mexica, ancient indigenous people ...
state of
Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. The state is divided into 72 municipalities; the ...
. The park is the only place in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
where the senita and organ pipe cactus grow wild. Along with this species, many other types of
cacti A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Gree ...
and other desert flora native to the
Yuma Desert The Yuma Desert is a lower-elevation section of the Sonoran Desert in the southwestern United States and the northwest of Mexico. It lies in the Salton basin. The desert contains areas of sparse vegetation and has notable areas of sand dunes. With ...
section of the
Sonoran Desert The Sonoran Desert ( es, Desierto de Sonora) is a desert in North America and ecoregion that covers the northwestern Mexican states of Sonora, Baja California, and Baja California Sur, as well as part of the southwestern United States (in Ariz ...
region grow in the park. Organ Pipe Cactus National Monument is in size. In 1976 the monument was declared a Biosphere Reserve by UNESCO, and in 1977 95% of Organ Pipe Cactus was declared a
wilderness area Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally re ...
. Land for the Monument was donated by the Arizona state legislature to the federal government during Prohibition knowing that the north–south road would be improved and make contraband alcohol easier to import from Mexico. In 1937 the land was officially opened as a national monument. At the north entrance of the park is the unincorporated community of
Why, Arizona Why? is an unincorporated rural community in Pima County, Arizona, United States. It lies near the western border of the Tohono Oʼodham Indian Reservation and due north of Organ Pipe Cactus National Monument in Southern Arizona. It is approxi ...
; the town of Lukeville, Arizona at the park's southern border is a border crossing point to
Sonoyta Sonoyta, Sonora is a town in the northern Mexican state of Sonora. It stands on the U.S.-Mexico border, facing Lukeville, Arizona, in the United States. It is the municipal seat of the municipality of Plutarco Elías Calles. Demographics Acco ...
, Sonora, Mexico. Organ Pipe Cactus National Monument is bordered to the northwest by Cabeza Prieta National Wildlife Refuge and to the east by the Tohono O'odham Indian Reservation.


Mexico-United States barrier

The visitor center has been named in honor of Ranger Kris Eggle. On August 9, 2002, he was shot and killed by a
drug A drug is any chemical substance that causes a change in an organism's physiology or psychology when consumed. Drugs are typically distinguished from food and substances that provide nutritional support. Consumption of drugs can be via inhala ...
smuggler during a
United States Border Patrol The United States Border Patrol (USBP) is a federal law enforcement agency under the United States' Customs and Border Protection and is responsible for securing the borders of the United States. According to its web site in 2022, its mission ...
operation. With a continuing, steady flow of immigrants and drug runners from Mexico, the majority of the park was closed in 2003. After being considered the most dangerous national park, the park reopened the backcountry after surveillance towers, vehicle barriers, and pedestrian fences were installed along the border. The first panels of a new Arizona, US-Mexico border wall were installed in August 2019 on a stretch of Organ Pipe Cactus National Monument. It is the first of three projects that will add bollard walls along Southern Arizona's wildlife refuges. The
National Park Service The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properti ...
issued a report on September 18, 2019, stating that the barrier wall threatens archaeological artifacts representing 16,000 years of human history. The U.S. Customs and Border Protection agency said that five archaeological sites fall within the area that it wishes to construct. In February 2020, controlled demolition and other construction work was performed within the Roosevelt Reservation. This strip of land along the border is federally controlled. However, many sites within this region are considered sacred by the Tohono O'odham Nation. Important sites include Monument Hill, which is a ceremonial and historic battle site and burial ground; and
Quitobaquito Springs Quitobaquito Springs are springs in Organ Pipe Cactus National Monument in Pima County, Arizona. The name is of Tohono O'odham origin meaning 'house ring spring'. The area has been populated for at least 16,000 years. It lies at an elevation of ...
, which is a local water source and the site of an annual salt pilgrimage. For this reason, construction was opposed by many locals, including Representative Raúl Grijalva and Tohono O’odham Nation Chairman Ned Norris, Jr., who testified before Congress on the matter. Customs and Border Protection officials maintained that no human remains or artifacts were discovered in the areas where explosives were used, and that Monument Hill was previously disturbed in 2010 when the existing border fence was installed.


Climate

Organ Pipe Cactus National Monument has a
hot desert climate The desert climate or arid climate (in the Köppen climate classification ''BWh'' and ''BWk''), is a dry climate sub-type in which there is a severe excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert ...
( Köppen: ''BWh'') with very hot summers and mild winters.


Gallery

File:Organ pipe cactus.jpg, An organ pipe cactus in the Monument File:Organ pipe cactus 11.jpg, Hedgehog cactus and brittlebush in bloom at the National Monument File:Sagaro Cactii at Organ Pipe Cactus National Monument.JPG, The Monument is also home to many
saguaro The saguaro (, ) (''Carnegiea gigantea'') is a tree-like cactus species in the monotypic genus ''Carnegiea'' that can grow to be over tall. It is native to the Sonoran Desert in Arizona, the Mexican state of Sonora, and the Whipple Mountai ...
cacti File:Organ pipe cactus arches.jpg, The Monument also contains a pair of natural arches File:Organ Pipe NPS Wilderness Map.jpg, Map of Organ Pipe and its designated wilderness


See also

*
Bates Well Ranch The Bates Well Ranch ( ood, Juñ Ka:ck), also known as the Bates Well, Growler Well, Gray Ranch and El Veit, was one of the fifteen ranches and line camps in the Gray family cattle business in the Sonoran Desert country north of the US-Mexico bor ...
, listed on the
National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...
within the park * Dos Lomitas Ranch, also listed on the NRHP *
Growler Valley The Growler Valley is a valley of south-central Arizona west of Ajo, Arizona. Growler Valley is a 65-mile (105-km) long valley paralleling the Growler Mountains on the east-(attached to the Little Ajo Mountains), and the Granite Mountains on ...
and Growler Mountains geographic features located within the park *
El Camino del Diablo El Camino del Diablo ( Spanish, meaning "The Devil's Highway"), also known as El Camino del Muerto, Sonora Trail, Sonoyta-Yuma Trail, Yuma-Caborca Trail, and Old Yuma Trail, is a historic road that passes through some of the most remote and inho ...
historic road that traverses a section of the monument


References


External links


Official Organ Pipe Cactus National Monument website
– '' U.S. National Park Service'' {{authority control 1937 establishments in Arizona Articles containing video clips Mexico–United States border Parks in Arizona Protected areas established in 1937 Protected areas of Pima County, Arizona Protected areas of the Sonoran Desert National Park Service National Monuments in Arizona