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Oglala, SD – The Oglala Sioux Tribe is one of the seven subtribes of the Lakota people who, along with the Nakota and Dakota, make up the Great Sioux Nation. A majority of the Oglala live on the Pine Ridge Indian Reservation in South Dakota, the eighth-largest Native American reservation in the United States.  The tribe operates two casino properties in South Dakota.  
   Tobacco smoke and odor complaints were taking their toll on customers and employees alike.  Casino Air engineered a solution and signed a contract with the tribe to retrofit both properties with Casino Air Technology.  Clean air is good business.