Last year we teamed up with the crew over at MTNTOUGH Fitness Lab to bring you the original MTNTOUGH Heavy Pack Workout. It was inspiring to see tens of thousands of mountain athletes across the world download this workout and give it a rip. Backcountry hunters from far and wide leveraged the workout on their local track or own backyard to prepare for the rugged demands of the backcountry.

This year we reached out to MTNTOUGH and asked them to up the ante. “ I wanted to see how they could take this workout to a whole new level,” explains Stone Glacier Marketing Director, Lyle Hebel. MTNTOUGH responded, designed, tested, re-designed and then handed us the MTNTOUGH Heavy Pack 2.0.

“This is one of my all time favorite heavy pack workouts because you have to think, and balance, and get used to taking your loaded pack on and it hits every muscle you have from head to toe. We are super impressed with the results of this workout and were so stoked we added it to our updated online MTNTOUGH Backcountry Hunter Preseason Prep Program,” explains MTNTOUGH founder, Dustin Diefenderfer.

If you need to pack a high-level of conditioning into a short amount of time, with only your weighted Stone Glacier pack, this workout is for you. Give it a run, and let us know your feedback and how many rounds you complete.



This workout is all about max rounds in 45 minutes, done as a circuit. Start with the lunges, repeat them 3x, then the run, then the burpees. That’s 1 round. Do max rounds in 45 minutes. Males 60lb pack and Females 40lb.

Start with...

  • 1) 10 Lunges Pack On Back
  • 2) 10 Lunges Pack Locked Out Overhead
  • 3) 10 Lunges Pack Held in Goblet/Front Rack Position

Repeat the Lunge Sequence Above Three Times Through. Then…

  • 4) 400M or .25 Mile Sprint

Followed by…

  • 5) 20 Burpees

That 1 Round. Do Max Rounds in 45 Minutes.


MTNTOUGH Fitness Lab located in Bozeman, MT, has established itself as the elite source for improving mental toughness, physical preparation, and performance research for the backcountry hunter and tactical athlete.

Research and Development is at their core, and they spent two years testing their MTNTOUGH Backcountry Hunter Preseason Prep program on some of the world’s most dedicated mountain hunters. You can now access this online program directly from your phone to prepare mentally and physically for the demands of the backcountry.

They have assembled an impressive team for this task, including Alex Fichtler (Former US Navy SEAL), Ara Megerdichian (US Army Ranger, Lieutenant Colonel and former West Point Instructor), Jimmy Alsobrook (Mountain Training Legend) and life-long backcountry hunter and founder Dustin Diefenderfer.