The location of the four NASA and USGS permanent dual-frequency sites are marked with magenta dots. Four USGS newly installed Ashtech real-time RTK systems are indicated by blue dots. Field topographic map showing locations of stations. The eight L1 station monuments were installed 17 and 18 October. Below are some photos of the monument installation process.
Cement is poured into the pipe in order to stiffen it.
A coupling near the base is used so the that the upper pipe can eventually be removed and re-installed in the future. Elliot Endo, Dave Mencin and Curt Conquest working on the CASA monument. Barbara Perin drilling the site at LINC atop the Mammoth mountain ski area. The outcrop is windswept and should be clear of snow during the winter. MGPG is near the hydrothermal power plant and will likely see signals from the fluid withdrawal.