Posted by Waste Happy
on September 10, 2026
Quick answer: on most trails, your dog's poop gets packed out, the same as a candy wrapper. Bring two or three bags per dog per day, a way to carry used bags outside your pack, and a sealable container for anything longer than a day hike. Never leave a bag beside the trail to collect on the way back.
The rules are stricter than your sidewalk
The National Park Service sums up hiking with a dog in its B.A.R.K. Ranger rules, and the first one is "Bag your pet's waste." The NPS also says to "always keep your dog on a 6-foot leash."
The last B.A.R.K. rule, "Know where you can go," matters more than people expect. At Yellowstone, pets "are not allowed on boardwalks, hiking trails, in the backcountry, or in thermal areas," and must stay within 100 feet of roads, parking areas and campgrounds. Other parks and forests have their own rules. Check before you drive four hours with a dog who is about to spend the day in the car.
Leave No Trace keeps it simple: "Bag your pet's waste and put it in the trash." On a trail, the nearest trash can may be at the trailhead. That is the whole challenge.
The bag on the trail problem
Leave No Trace describes a routine you have probably seen: grab poop bag, pick up poop, leave the bag on the ground to grab on the way back, then forget it. It also points out that abandoned bags create a norm, where the next hiker assumes that is just what people do here.
The fix is not willpower. It is having somewhere to put the bag that is not your hand or the ground.
Can you bury it instead?
Sometimes. Leave No Trace says that where land managers recommend catholes for human waste, "it is acceptable to bury your dog's poop in the same manner." Its waste principle puts catholes at 6 to 8 inches deep and at least 200 feet from water, camp and trails.
The bag does not go in the hole. Leave No Trace says the bags should still be packed out. That goes for ours too. Bag it, carry it out, and bin it at the trailhead.
Carrying a used bag for hours
Day hikes
Squeeze the air out, tie the knot tight and close to the load, and get it off your hand. A dispenser with a used-bag hook on the leash works well here, and so does a carabiner on a pack strap. Outside the pack, not inside it.
Overnight and longer
Double bag, then put the lot in a hard container with a screw lid: a wide-mouth bottle you never plan to drink from again, or a capped length of PVC pipe, which climbers call a poop tube. Keep it in an outside pocket, away from food, and out of direct sun when you stop. Heat makes everything worse.
How many bags to pack
| Trip | Bags per dog | Why that many |
|---|---|---|
| Short hike, under 3 hours | 2 to 3 | One pickup, plus a spare and a backup |
| Full day | 4 | Exercise can mean an extra stop |
| One night out | 6 | Two days of pickups, plus double bagging |
| Three days | 10 to 12 | Double bagging adds up fast |
That is our rule of thumb, built on the one or two poops a day the American Kennel Club calls normal for an adult dog. Round up. Nobody has ever finished a hike wishing they had carried fewer bags.
Common questions
Do you have to pick up dog poop on hiking trails?
In national parks, yes: Yellowstone's rules say owners must bag and dispose of pet waste. Leave No Trace's general guidance is to bag it and put it in the trash.
Can I leave a poop bag on the trail and grab it on the way back?
You can, and Leave No Trace says that is exactly how bags get forgotten. Carry it from the start.
Can I bury my dog's poop while backpacking?
Only where land managers recommend catholes for human waste: 6 to 8 inches deep, 200 feet from water, camp and trails. Pack the bag out.
How do I keep a used poop bag from smelling in my pack?
Keep it out of the pack. Tie it tight, double bag it, and carry it in a sealed container in an outside pocket.
What we would pack
For day hikes, the Walk Dispenser + Single Roll bundle ($20.98) covers it. The silicone dispenser clips to the leash, and its hook holds a used bag so it never touches the ground. The bags are extra thick and leak-proof, and at 14 inches long they leave room for a tight knot, which is most of the odor battle. For longer trips, pack extra Single Rolls ($4.99, 15 bags each) in a zip bag.
For multi-day trips, a purpose-made odor-barrier sack is worth buying. We do not make one, and we would rather tell you than pretend a poop bag does that job.
Hiking in July? Read the summer dog walking guide for heat and hydration. For more on smell, see poop bags that don't smell, and for everything that happens back home, what to do with dog poop.
