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The San Jose Oak Hill Tower is unique in a number of ways. The concrete brutalist design appears not to have been used anywhere else; it seems to have been site-specific. It sits atop an underground switching center (that was partly used for a military contract), which explains the relatively hardened design.

Today the underground switch is still there, owned by AT&T, but the tower space is leased to land mobile and cellular providers. The horn antennas are disconnected relics.