Definition Of Personas. A persona is a group of visitors that visit a website, that share a common objective, purpose or background which make them distinct from another group of visitors.
U.S. Geological Survey Geographic Names Information System: Nubieber, California; U.S. Geological Survey Geographic Names Information System: Nubieber, California. Nubieber (formerly, Big Valley City and New Town) is a census-designated place in Lassen County, California. It was located at the common terminus of the Western Pacific Railroad and the Great Northern Railway Bieber Line 3 miles (4.8 km) southwest of Bieber, at an elevation of 4121 feet (1256 m).
Niobrara Shale. Niobrara Shale Overview. The Niobrara shale formation is situated in northeastern Colorado and parts of adjacent Wyoming, Nebraska, and Kansas. Primarily an oil play, it is in the Denver-Julesburg Basin, which has long been a major oil and gas province.