When I first arrived in Colorado, I was looking for a good place to hide a cache.
Imagine my amusement when I discovered a mountain top of my own. 
I knew I had to put a cache there. Two years later, I finally completed that quest!
... and after another year, I've gone back and loaded the area with each size.
This one is the large-sized hide, and, while it's not a gigantic container, it is the largest one up here. You're looking for a wide ammo can. It is fairly obvious where it is hidden when you get to GZ. I had to fill in the lower part of the opening since it was too tight for the can. Even though it is a larger/heavier rock, I would suggest removing just the upper part of the pile and pulling the can out that way.
Except for the Regular and Large container's, which are ammo cans, you're looking for a theme to the other three.
Please replace the cover so it's semi-protected from critters, weather and the chance-muggle.
Please be careful. There are many loose rocks that otherwise appear to be very stable.
SKuLL Rock
SKuLL Rock is a 7,126 ft mountain peak near Deckers, Colorado.
It's just West of South Platte River at the intersection of Hwy67 and Hwy126.
It ranks as the 3,768th highest mountain in Colorado and the 13,424th highest mountain in the United States.
Congrats to 9-rushman&farmgirl79 for the FTF!! 
Additional Waypoints
P1646NG - Parking
N 39° 15.542 W 105° 13.477
SKuLL Rock (Large)
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