Alabaster Caverns State Park
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Alabaster Caverns State Park is a state park approximately south of Freedom, Oklahoma, United States near Oklahoma State Highway 50. The park attracted 24,706 visitors in FY 2016, The lowest count of the three parks in its part of Oklahoma. According to the ''Encyclopedia of Oklahoma History and Culture'', the park Previously attracted about 40,000 visitors per year. It is home to the largest natural
gypsum Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywal ...
cave A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...
in the world that is open to the public.Allen, LaRadius
Alabaster Caverns State Park
,
Encyclopedia of Oklahoma History and Culture
'' (accessed May 19, 2013)
The gypsum is mostly in the form of
alabaster Alabaster is a mineral or rock that is soft, often used for carving, and is processed for plaster powder. Archaeologists and the stone processing industry use the word differently from geologists. The former use it in a wider sense that include ...
. There are several types of alabaster found at the site, including pink, white, and the rare black alabaster. This black alabaster can be found in only three veins in the world, one each in Oklahoma, Italy and China. Another form of gypsum can be found in the many selenite crystal formations.Alabaster Caverns State Park
Oklahoma Tourism and Recreation Department (accessed May 19, 2013)
The state is currently considering closing Alabaster Caverns State Park for budgetary reasons.


History

Over 200 million years ago, during the Permian Age, this part of North America was covered by an inland sea. The water eventually evaporated, leaving behind huge deposits of
alabaster Alabaster is a mineral or rock that is soft, often used for carving, and is processed for plaster powder. Archaeologists and the stone processing industry use the word differently from geologists. The former use it in a wider sense that include ...
and other minerals. Upheavals of the earth raised the gypsum bed close to the surface. Over time, water streams tunneled caverns through the formation, which contains an abundant quality of selenite crystals, white and pink gypsum as well as deposits of rare black alabaster. There is no official record of discovery for Alabaster Caverns, even though they were known to have been used as hideouts by outlaws in the 19th Century. The first documented exploration of the caves occurred in 1898, shortly after Hugh Litton homesteaded the area in 1893. Several individuals leased land around them during the 1920s and 30s, and allowed limited tours of the caverns, which they called "bat caves." In 1939, an Englishman named Charles Grass bought the land. began renovating the caves, and opened them for public tours. It was Grass who gave them their current name. Grass was in failing health in 1952 when a group of five businessmen from Freedom, Oklahoma, the nearest community, and members of the Waynoka Railroad Labor League began lobbying for the
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of Oklahoma to buy Grass' land. The state purchased from Grass on September 1, 1953, for $34,000, then reclassified the purchase as a state park in 1956, under the jurisdiction of the Oklahoma Planning and Resources Board. In the mid-1950s the caves served as a
nuclear fallout shelter A fallout shelter is an enclosed space specially designated to protect occupants from radioactive debris or fallout resulting from a nuclear explosion. Many such shelters were constructed as civil defense measures during the Cold War. During ...
.


Geology

Alabaster Caverns State Park is underlain by Permian age sedimentary rocks (~300 to 250 million years old). The main cavern extends into the formation, is about wide and high. The cavern branches into boulder formations and smaller caves. A small perennial stream now flows through the cavern, fed by various lateral tunnels and seepage from the roof. In the geologic past, the river was once capable of completely filling the cavern, as the cave walls and gypsum formations show evidence of sculpting by rapidly flowing water. The air temperature ranges from 52˚F to 58˚ year round in the cavern.


Wildlife

The cavern is home to five different species of
bat Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most ...
. Some are solitary while others are colonial. The cavern provides roosting sites that serve as daytime shelter and a place for the non-migrating bats to hibernate during the winter months.
Mexican free-tailed bat The Mexican free-tailed bat or Brazilian free-tailed bat (''Tadarida brasiliensis'') is a medium-sized bat native to the Americas, so named because its tail can be almost half its total length and is not attached to its uropatagium. It has been ...
s migrate to Alabaster Caverns from Mexico in the spring to bear their young. They then return to Mexico in the fall. The bat species found in the cave are the cave myotis, Western big-eared bat,
eastern pipistrelle The tricolored bat (''Perimyotis subflavus'') is a species of microbat native to eastern North America. Formerly known as the eastern pipistrelle, based on the incorrect belief that it was closely related to European ''Pipistrellus'' species, th ...
, Western big brown bat, and the
Mexican free-tailed bat The Mexican free-tailed bat or Brazilian free-tailed bat (''Tadarida brasiliensis'') is a medium-sized bat native to the Americas, so named because its tail can be almost half its total length and is not attached to its uropatagium. It has been ...
. Alabaster Caverns State Park personnel made a count of the bats in the caverns this year and reported over 19,000. In 2016, the count reported about 16,000.Tucker, Curtis. "Alabaster Cavern has 19,000 bats!" ''Enid Buzz''. January 31, 2017.
Accessed August 19, 2018.


Visitor activities

Beside guided cave tours, wild caving, camping, hiking trails, and recreational facilities such as horseshoe pits and volleyball courts are available to visitors. Tours are conducted every hour on the hour and last about 45 minutes, and are limited to 40 persons each. The caves are lighted and have plenty of handrails. However, the walking tour is about long and visitors must climb up or down about 330 stair steps. This tour is not recommended for people with mobility or respiratory problems, heart conditions or claustrophobia.
Accessed August 18, 2018.


Proposed park closure in 2018

In March 2017, the Oklahoma Department of Tourism and Recreation published a list of 16 state parks that may be closed to help offset a reduction in its budget for 2018. Alabaster Canyon State Park is on this list. This list represents approximately one-half of the parks remaining after the department closed seven parks in 2011.Fultenberg, Lorne. "Half of Oklahoma state parks could close with budget cuts." KFOR News. March 13, 2017.
Accessed November 1, 2017.


Notes


References


External links


Alabaster Caverns State Park


{{authority control Caves of Oklahoma State parks of Oklahoma Gypsum caves Show caves in the United States Protected areas of Woodward County, Oklahoma Landforms of Woodward County, Oklahoma 1956 establishments in Oklahoma Geology of Oklahoma