In keeping with the X-Base theme you should know that both Orion and Polaris have military connotations. Polaris is a two stage nuclear missile, but submarine launched so maybe not so in tune with X-base. Orion was a military/NASA project that was to be a rocket powered by (love this) nuclear explosions! The nuclear test ban treaty of 1963 ended the project.
Also the red buildings are wood coaster maintenance. The big concrete slab down the hill behind them was the elephant barn in the wild animal habitat days Rozzis used to launch the fireworks from there and King Cobra was stored there after it was dismantled when I worked there. There were also some other animal "barns" , aka metal buildings, that were used for storage back there.