Nacimiento Formation Nacimiento Formation The Nacimiento Formation is a sedimentary rock formation found in the San Juan Basin of western New Mexico (United States) and named for the Nacimiento Mountains. It is a heterogeneous nonmarine formation composed of shale, siltstone, and sandstone, deposited in floodplain, fluvial and lacustrine settings, and made up of sediment shed from the San Juan uplift to the north and the Brazos-Sangre de Cristo uplift to the east. It was deposited mostly between ~64.5 and ~61 million years ago, during the early and middle Paleocene. The climate was humid and warm to hot. This unit interbeds with the
Cliffs of the Neuse State Park Cliffs of the Neuse State Park Cliffs of the Neuse State Park is a North Carolina state park in Seven Springs, Wayne County, North Carolina in the United States. It is located near Seven Springs, North Carolina and covers along the southern banks of the Neuse River. It has a swimming area, camp sites, hiking trails, fishing areas, and picnic areas. The park's museum features exhibits about the geology and natural history of the cliffs and the park. Extending for , the series of cliffs rise above the water. Layers of sand, clay, seashells, shale and gravel form the multicolored