RE: Results of Archaeological Surface and Subsurface Survey for the GATR B51 Antenna Site Project, Communication Tower Bridge on Oak Mountain, Vandenberg Space Force Base, California; Project ID 813-20-025

This document is a Section 106 letter report for the archaeological surface and subsurface survey for the Ground-to-Air and Receiving Site (GATR) Building 51 Antenna Site Project, Communication Tower Bridge on Oak Mountain at Vandenberg Space Force Base. The report provides a brief overview of the undertaking and setting of the project. It then discusses the methods used to excavate three shovel scraps and five shovel test pits. The result of the scrapes and excavations was that no subsurface archaeological deposit was observed and that the project would not impact any unknown subsurface archaeological deposit.