Getting ready for Colorado will be a little less intense than what I'll need in the Himalaya. Here is what I'm doing currently:
Volume 8-10 hrs/week
2 days/week HIIT: HR Zone 4+
4 days/week Endurance + Strength: HR Zone 2-3
Day 1: Rest - walk/core workout 1.5 hrs.
Day 2: Gym Class "crossfit light" HIIT .75 hr.
Day 3: Zone 2-3 Stairmaster 1.5 hrs.
Day 4: Hill workout w/60# pack wt. 1.5 hrs.
Day 5: Gym Class Steamline Crossfit/Spin/TRX 2 hrs.
Day 5: Zone 1-2 Hike w/60# pack 5mi 1.75 hrs
Day 7: Zone 2-3 Swim/Stairmaster 1.5 hrs.