On Bollinger Canyon Road near Las Trampas.
The missile silos are used by Tracor Aerospace as part of their
assembly facility - I believe they make explosive bolts,
chaff dispensers, and other small pyrotechnic devices.
Previously, this was where the Gyrojet rocket pistol was made.
A half mile south on Bollinger there are some Nike-era buildings
being used as the Las Trampas park office.