Big Cypress National Preserve is a United States National Preserve located in South Florida, about 45 miles west of Miami on the Atlantic coastal plain. The 720,000-acre (2,900 km2) Big Cypress, along with Big Thicket National Preserve in Texas, became the first national preserves in the United States National Park System when they were established on October 11, 1974. In 2008, Florida film producer Elam Stoltzfus featured the preserve in a PBS documentary.