"Alabaster Caverns State Park is a 200-acre (0.81 km2) state park approximately 4.5 miles (7.2 km) 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 cave in the world that is open to the public. The gypsum is mostly in the form of alabaster. 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. The state is currently considering closing Alabaster Caverns State Park for budgetary reasons."  (Wikipedia)

"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 0.75 miles (1,210 m) long and visitors must climb up or down about 330 stairsteps. This tour is not recommended for people with mobility or respiratory problems, heart conditions or claustrophobia." (Wikipedia)

ALABASTER CAVERNS STATE PARK

"The highlight of this 200-acre park is the 3/4-mile cavern formed of alabaster, a rare form of gypsum, making it the largest natural gypsum cave in the world open to the public. Daily guided tours of the cave are available on the hour from 9am to 4pm (fee charged)," the StateParks.com says.

"The cavern recently underwent an extensive lighting overhaul. Group tour reservations are required at least two weeks in advance. A horseshoe pit, volleyball court, camping areas, picnic tables and shelters, group shelters with electricity, water and grills are available at the park. Wild caving is a unique adventure at the park as well.

"Alabaster Caverns State Park offers picnic tables and grills, perfect for a family outing. No reservations are required for picnicking. Daily guided tours of the cavern are available on the hour from 9 AM to 4 PM. For safety reasons, each tour has a maximum number of visitors who can be accommodated. For this reason, during holidays, large-scale area events, if traveling a great distance, or if you would like to make plans around a particular tour time, it is recommended that you call the park office in advance for a cavern tour reservation."

"Alabaster Caverns State Park, located in Woodward County six miles south of Freedom near State Highway 50, encompasses one of the world's largest gypsum caves open to the public. An inland sea covered the area over two hundred million years ago during the Permian Age," the Oklahoma Historical Society says.

"The water evaporated and left large deposits of gypsum and other minerals. An upheaval of the earth raised the gypsum bed close to the surface, and over time, water streams tunneled caverns through the formation. The caverns contain an abundance of crystals of selenite and white and pink gypsum as well as deposits of rare black alabaster.

"The main cavern is three-fourths of a mile long, with a maximum height of fifty feet and width of sixty feet. It branches into numerous caves with uniquely named boulder formations, such as "Ship's Prow," and into chambers called "Devil's Kitchen" or "Crystal Vault." The cavern temperature ranges from 52˚F to 58˚ year round."

"Enter one of the largest natural gypsum caves in the world at Alabaster Caverns State Park. This rare cave is open to the public, and the only gypsum show cave in the United States. Daily guided tours of Alabaster Cavern leave promptly on the hour from 9am-4pm. For safety reasons, a maximum of 40 visitors are allowed on each tour. A fee is charged for the tour, and no pets are allowed inside the caverns," the Travel Oklahoma says.

"The cavern tour includes guided interpretation on a well-lit path. Group tour rates are available for school and youth groups only and only after a reservation has been made and a confirmation number been issued. Group reservations are required at least two weeks in advance by calling the park office. NOTE: Tour reservations are recommended during holiday weekends and during local events.

"For a unique adventure, try wild caving at the park. Better known as spelunking, Alabaster Caverns is home to four caves that are maintained especially for wild caving. Caves range in length from 550 feet to 1,600-ft. Permits may be obtained at park office. No permits will be issued between October 1 and March 31 for protection of hibernating bats. A small fee per person applies. Wild caving is only permitted between the hours of 8am and 3pm. Please contact the park office for an equipment list as well as rules and regulations."

"This state park gets its name from the material from which the caves are made. Alabaster is a fine-grained, translucent and rare form of gypsum and this is the world’s largest natural gypsum cave open to the public. There are a lot of ways to explore these amazing caves and some fun events celebrating the caves’ most notorious inhabitant, bats," the Metro Family Magazine says.

"The cave tour is less than a mile and includes 330 stairs. Needless to say, you are a little winded at the end. The cave is cool and damp (even in the summer) so plan accordingly by wearing a jacket and wearing closed-toe shoes to handle the narrow steps more safely.

"Tours are offered daily at the top of every hour from 9 a.m. to 4 p.m. and tour groups are capped at 40 visitors. The tour path is well-lit but the lights are on timers. The tour moves through the cave as the lights go on and off. To keep the tours timely, the following items are prohibited: pets, cell phones, flashlights, cameras and baby strollers."

"If you didn't already know, Oklahoma also has a unique 'world's largest' feature, and you can find it in Alabaster Caverns State Park. The highlight of the expansive park is the 3/4-mile alabaster cave, which is the world's largest natural gypsum cave," The Travel says.

"This highly underrated state park is an adventurer's paradise, and yet many overlook it as a destination to explore. For a state that is famous for its 'bizarreness', this impressive natural attraction is a great addition that you need to see for yourself.

"Alabaster Caverns State Park is another one of these underrated places that features more than meets the eye. For tourists that seek impressive sights and landmarks, this park has just that and more. Featuring a 3/4-mile-long gypsum cave, which is the world's largest of its kind, this Oklahoma state park is in a league of its own, and it is a place where you can enjoy a real adventure."

"Alabaster Caverns State Park, the largest gypsum cave in the world open to the public, is 3/4 miles long. Its rock and mineral formations can be seen in few other places. Massive boulders of alabaster, a fine-grained mass gypsum, is seen in many colors: pink, white and even a rare black," the Freedom Chamber of Commerce says.

"Guided tours of the main cave are offered on the hour year round from 8:00 a.m. to 4:00 p.m. except Thanksgiving and Christmas. From May through September, a 5:00 p.m. tour is available. Visitors taking the tour should wear comfortable walking shoes and a light jacket ( average temperature is 50 degrees). The walking tour is not recommended for those with mobility or respiratory problems, heart conditions, or claustrophobia.

"Or, for the excitement-seeker, there's Wild Caving! Explore one or more of the five undeveloped caves in the park form March through September. Be sure to have the required safety equipment and obtain a permit at the Visitor Center."

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