When I was a kid, I lived not far from here on the other side of the freeway. I used to think it was loads of fun to come up here, watch the traffic and try to get the truckers to honk their horns. :-) And I always had a blast riding my bike down the spiral ramp. If you ride your bike here, take care, or you could... spiral out of control!
The container is the size of a bison tube. It's made from a repurposed CO2 cartridge that I found on the side of the road. Cache in, trash out, then turn that trash into a cache! Have fun and as always, please be careful when retrieving and re-hiding. Please re-hide exactly as found, or it will surely be muggled.