 Howard E. Tatel Radio Telescope (85-1), the first element of Green Bank Interferometer | |
| Location(s) | Green Bank, Pocahontas County, West Virginia |
|---|---|
| Coordinates | 38°25′58″N 79°50′22″W / 38.4328°N 79.8394°W |
  Location of Green Bank Interferometer | |
 Related media on Commons | |
The Green Bank Interferometer (GBI) is a former radio astronomy telescope located at Green Bank, West Virginia, U.S., and operated by the National Radio Astronomy Observatory. It included three on-site radio telescopes of 85-foot (26m) diameter, designated 85-1, 85-3, and 85-2 (85-1 is also known as the Tatel Telescope) and a portable telescope.