The Castle
This cache is placed near the City National Arena, which is the practice facility of the Vegas Golden Knights. The arena is also home to UNLV's hockey club and the Junior Golden Knights.
This is an easy park & grab that you can drive right up to. I don't recommend trying to find this one on an Aviators Game Day (Schedule Here). It can be done, but you'll have to be Super Duper Stealthy.
Congratulations to JessaCachers & cejaroni for the joint FTF!