| 2. |  | U.S. Coast and Geodetic Survey Trig Stations: Salt Lake Base Net, Utah, 1896. December 2009 | Surveying; U.S. Coast and Geodetic Survey; Davis County (Utah) | Two images of old brick survey base monuments, each about 9 feet high. They are both in Davis County, Utah. One is the Southeast Base and the other the Northwest Base, and are part of ""The Transcontinental... |