Fruitland Formation the Colorado-New Mexico state line, and is one of the most productive areas for coalbed methane in the United States. The Fruitland is underlain by the Pictured Cliffs Sandstone, and overlain by the more recent Kirtland Formation. The sequence of rocks represents the final filling of the Cretaceous seaway. The underlying Pictured Cliffs is a marginal marine sandstone, deposited in an environment similar to offshore barrier islands of the southeast United States. As the seaway retreated, the Pictured Cliffs was covered by the Fruitland Formation, which was deposited in near-shore swampy lowlands. The formation is dated to the late Campanian
Brazos Bend State Park maintenance of a natural landscape. In 1984 the Park was officially opened to the public, its lands having been donated to the state several years previously. In 2009, the Park celebrated its 25th Anniversary with a variety of special events and recognitions. Today the Park is run by the Texas Parks and Wildlife Department, with the assistance of an active non-profit volunteer organization. Although it contains recreational day-use areas (including a dining hall, campground, and picnic areas) Brazos Bend is by primary character a natural park. Its recreational opportunities revolve around enjoyment of its diverse ecosystems and species. Popular activities