The Wortham Gymnasium was a historic athletic facility on in , a rural community in Nevada County east of Rosston. Built in 1935 by a Works Progress Administration crew, this large gymnasium was the only surviving remnant of a major push in the 1920s and 1930s to improve the education of African Americans in Oak Grove. It was a single-story wood-frame structure with a gable roof, with a shed-roofed vestibule area on the main (southern) facade. At the time of its construction, it was the largest gymnasium in the state.