Oyúȟpe (Lakota: Oyúȟpe; the name of a band of the Oglala) is a census-designated place (CDP) in East Oglala Lakota Unorganized Territory (civil township equivalent) in Oglala Lakota County, South Dakota, United States. The population was 554 at the 2020 census. Oglala Lakota tribesman, Kicking Bear died here on May 28, 1904. He fought in several battles during the Black Hills War, including Battle of the Greasy Grass. His nephew, Felix Flying Hawk owned a ranch.
According to the Federal Writers' Project, the origin of the name Manderson is obscure.
Geography
According to the United States Census Bureau, the CDP has a total area of , all land.
Climate
Like most of South Dakota, Oyúȟpe has a relatively dry humid continental climate (Köppen Dfa) with summers featuring very warm to hot afternoons and pleasant mornings, and generally freezing, though very variable, winters. Winter weather, like all of the West River region is dominated by the extreme temperature conflicts between warm chinook winds that bring temperatures above on an average of seventeen afternoons during the three winter months, and cold Arctic air that brings an average of 19.5 mornings below . The dryness of the winter limits snowfall and the chinooks further limit snow depth, which exceeds on only 41.8 days each year.
Summer weather is generally very warm, although during dry spells when the upper-level anticyclone moves northward, long periods of sweltering and arid weather may occur: the hottest month was August 1983 with a daily mean of and the hottest temperature on record on July 2 of 1990.
Demographics
As of the census