Well at Keystone you've got:
-Full sized run
-Park begins, Choice between small, medium, and big, then pipe on far left
-Another full sized run below
Small
~15 total rails and boxes of all shapes
~3-4 small jumps
Medium
5-6 jumps ranging from 10-30ish feet
Maybe 25 rails and boxes
Quarter Pipe and tree jibs
Large
3 jumps from ~40-60ish feet
10ish fairly technical large rail features
Pipe and 'Jib Yard'
~15 features of varied random style and condition - basically just a weird cluster of extras in my opinion
-Large pipe that is not that great
Breck is similar, but you have a longer run and the park is at the bottom
Small
~8 total rails and boxes of all shapes
~3-4 small jumps
Mini pipe and mini quarter pipe
Medium
6 jumps ranging from 10-40ish feet
Maybe 25 rails and boxes
More open space that Keystone, but not much more
Large
3 jumps from ~60-80ish feet
15ish technical large rail features
Huge quarter pipe
Enormous and spectacular superpipe filled with pros training for X
There is also another small park on Peak 9 that has about 10 rails/boxes and some small jumps, it's actually kind of fun too