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Mystery Ranch
Coulee 40L Backpack

4.333333333333333 out of 5 stars
3 Reviews

Out of Stock

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Coulee 40L Backpack

Comfort and convenience come together in the Mystery Ranch Coulee 40 Backpack. Whether you're gearing up for an all-day hike in the hills or keeping things light for a quick overnighter, this ingeniously designed bag has your back.

It features an innovative 3-ZIP design that allows you to gain access to the entire main compartment at once. That means no more digging through all your gear just to find an elusive headlamp or hidden camp meal. A lightweight fiberglass frame adds support without the weight when you're hauling a full load into the wild, and the telescoping yoke provides a custom fit that most packs in this size range can't offer, so you're more comfortable on your minimalist backpacking missions and gear-intensive day hikes.


  • Ready for long day hikes and minimalist overnighters
  • 3-ZIP design offers incredibly fast and easy access
  • Lightweight fiberglass frame sheet enhances support
  • Telescoping yoke allows for custom torso fit
  • Two tool carry loops secure gear to exterior
  • Side compression straps stabilize load
  • Zippered lid pocket organizes gear and small essentials
  • Fully cushioned back panel and straps keep you comfortable
  • Item #MYT002X
330D Robic nylon
40L (2441cu in)
vertical frame stays
Shoulder Straps
padded, adjustable
Waist Belt
padded, adjustable, removable
Hydration Compatible
Reservoir Included
top, front
2 front stash, 2 side water bottle, 2 zippered lid, 2 zippered hip
Ice Axe Carry
Trekking Pole Carry
side straps
Weight Capacity
28.5 x 16 x 12.5in
Claimed Weight
3lb 12.8oz
Manufacturer Warranty

Overall Rating

4.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 2 reviews
5 Stars - 1 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

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4 out of 5 stars

July 28, 2023

Great Pack, not a Dana ... but what is.

I've used it several times
Size Bought:
5' 7"

Solid little pack. Suspension is worthy of a dense heavy load for a 40L. Cons - lack of daisy chain or easy external attachment points. *Dana G. - bring back the Bomb Pack! Pros - Will carry a small dense heavy load well. I can fit a 60m rope, sport rack, harness, shoes, first aid/ten essentials, food, water and a layer nicely. External pockets are fantastic for 1 liter bottles, rain gear etc. Suspension is two thick wire stays. Great crag pack. It was between this and the Bridger 45 ... went this way cause the Bridgers Yoke/Shoulder Harness is just too "Triathlon" for me. I'd would be 5 Stars if it had places to clip biners externally (smelly shoes, brain Bucket) aka Daisy Chain.

AgingDirtBag A
5 out of 5 stars

June 12, 2023

The perfect pack

I've used it several times
Size Bought:
5' 7"

I was looking for the “Goldilocks” pack for some summer mountain day hiking & the Mystery Ranch Coulee 40L Backpack was it. Not super large, not too small, this pack is just right. The Coulee 40L Backpack has its own pouch for a water bladder & plenty of room for everything else you need for long day hikes. You can purchase a frame size that fits you & the pack can be adjusted for the perfect fit. Plenty of pockets for all kinds of gear & easy access pouches for the things you want to keep close. I got one for my wife & she loves it too. No complaints here…it’s a great Mystery Ranch pack!

Jeremy J
4 out of 5 stars

October 16, 2021

Great Bag, though.....

I've used it once or twice and have initial impressions

My initial impression was very good. It's a quality item. But, at 200 dollars, for a backpack, it really ought to be. I filled it with about 25 Lbs, worth of stuff and went for a walk. The only issue I've found, and that others have reported is the fit of the plastic back plate. For me, the plate dug into the base of my neck, without the plastic the fit was excellent. The bag itself, the zippers, the pockets, the stitching, the padding, the fiberglass frame rods and their supports in the bag, the compression straps and their velcro keepers, the design and execution of the waist support and the design and execution of the back support and shoulder harness element are all excellent. This is one of the finest bags I've ever owned at this price point. Admittedly I've not owned many 200+ dollar bags. 100 dollar bags I've been though plenty, none as designed and voluminous as this one. The triple zipper is genius, it's the reason I bought the bag other than the Mystery Ranch reputation. Coworkers have been using their bags for many years, and until recently, my old bag was just fine, but then, disaster involving an excavator and an errant rock led to it's untimely demise. An excuse was born, and a bag purchased. Now, onto the plastic plate situation. What I did was heat the plastic over a burner, gently, until I was able to soften it slightly and bent it to the desired profile, then ran it under cold water to freeze the new shape. worked like a charm, went for a walk again with the weight on and I didn't feel a thing, not even the weight in the bag. This is a very good bag. It also holds to your body, so if you have to move around quickly or just feel nimble, this bag will help you do that. My only real complaint is, the loop in the bag which is apparently made to hang a bladder from, it won;t fit around a 3 Liter camelback milspec (the long green one) widemouth, I was looking forward to that feature, cause it is real nice to hang the sack in the bag. BUT, the loop is still there and it has a nice toggle, I will be improvising a hanger onto that one. Lastly, I bought the lizard color scheme. I love very much the color of the bag. the zip pulls and shock cord though, not so much. I replaced the neon green/yellow with olive drab paracord and all is right with who am I kidding the planet's a mess........

Honza K