Leave No Trace (LNT) is an outdoor ethics framework developed in the 1990s to address the growing impact of recreational use on wilderness areas. As more people discover the joys of hiking, camping, and backcountry travel, the cumulative effect of millions of visitors threatens the very wildness we seek to experience.
The seven Leave No Trace principles provide a code of conduct that minimizes impact while maximizing enjoyment and safety. These aren’t arbitrary rules — they’re based on decades of scientific research into how human activity affects ecosystems.
Principle 1: Plan Ahead and Prepare
Proper planning reduces reliance on resource-intensive solutions in the field and prevents situations that cause environmental damage.
What it means in practice:
- Research regulations, permits, and seasonal restrictions before your trip
- Check weather forecasts and prepare for extreme conditions
- Schedule trips during off-peak times to reduce crowding
- Repackage food to minimize waste volume
- Learn the skills needed (navigation, first aid, camp skills) before you go
- Plan meals to avoid excess food that attracts wildlife
Why it matters:
Unprepared hikers create disproportionate impact: building illegal fire rings when cold, bushwhacking when lost, creating social trails to find campsites, and leaving gear behind when forced to abandon trips.
Use our online compass and download offline maps before entering areas with no cell signal. Knowledge of navigation tools reduces the chance of getting lost and damaging vegetation by going off-trail.
Principle 2: Travel and Camp on Durable Surfaces
Vegetation, soil, and cryptobiotic crusts are easily damaged by foot traffic and camping. Concentrating activity on durable surfaces preserves these fragile resources.
Durable surfaces include:
- Established trails and campsites
- Rock, gravel, dry grasses
- Snow and ice
- Sand and dry streambeds (check regulations)
In popular areas (high-use zones):
- Stick to established trails — even if muddy
- Camp only in designated sites
- Keep campsites small
- Focus activity in areas already cleared of vegetation
In pristine areas (low-use zones):
- Disperse use to avoid creating new trails
- Move camp every night to prevent site degradation
- Avoid places where impact is just beginning to show
Special note on cryptobiotic soil crust:
In desert ecosystems, black, crusty soil is biological soil crust — a living community of cyanobacteria, lichens, and mosses that takes decades to regrow. A single footprint can destroy 50+ years of growth. Stay on rock or established trails in these areas.
Principle 3: Dispose of Waste Properly
“Pack it in, pack it out” is the simplest version, but proper waste disposal goes further.
Human waste:
- Use established toilets when available
- If none available, catholes: dig 15-20 cm deep, 60+ meters from water, trails, and camps
- Pack out toilet paper and hygiene products (or burn TP completely in fire-safe conditions)
- In high-alpine, winter, or fragile ecosystems: pack out solid human waste in WAG bags
Food waste:
- Pack out all food scraps — including apple cores, orange peels, and nut shells
- “Biodegradable” means it will eventually decompose, but animals find and eat it first, altering natural behavior
- Never bury food — animals dig it up
Wastewater:
- Scatter strained dishwater 60+ meters from water sources
- Use biodegradable soap sparingly (or none at all)
- Strain food particles and pack them out
- Never wash directly in lakes or streams
Trash:
- Pack out everything you brought in
- Pick up others’ litter when you can
- “Leave it better than you found it”
Principle 4: Leave What You Find
Preserve the past and the present for others to discover.
Cultural and historical artifacts:
- Leave rocks, fossils, antlers, and other natural objects
- Do not disturb or remove archaeological sites (ruins, arrowheads, rock art)
- Photograph, don’t collect
Natural features:
- Don’t carve or paint trees, rocks, or structures
- Avoid hammering nails or damaging trees with guy lines
- Leave flowers, plants, and seeds for others to enjoy
Avoid introducing non-native species:
- Clean boots to prevent spreading invasive plant seeds
- Don’t release bait fish into lakes (even if from same region — genetic contamination)
- Don’t scatter non-native food seeds
Minimize site alterations:
- Don’t build structures, furniture, or trenches
- Don’t level tent sites by moving rocks or digging
- Dismantle fire rings at wilderness campsites (unless established, designated sites)
Principle 5: Minimize Campfire Impacts
Campfires create lasting scars — charred logs persist for decades, ash alters soil chemistry, and rock rings proliferate. Fire bans are increasingly common due to wildfire risk.
When fires are allowed and appropriate:
- Use established fire rings only
- Keep fires small (30cm diameter or less)
- Burn only small sticks (no thicker than your wrist) that can be broken by hand
- Burn all wood and coals to white ash
- Extinguish completely — drown, stir, drown again until cold to touch
- Pack out unburned trash (foil, food waste, plastic doesn’t burn clean)
Better alternatives:
- Lightweight stoves: faster, more efficient, leave no trace
- Candle lanterns for atmosphere
- Extra insulation for warmth
- Enjoy the darkness and stars
Special fire considerations:
- Never leave fires unattended
- Check local regulations — many wilderness areas ban fires completely
- Avoid fires during dry conditions, high winds, or fire danger periods
- Never cut standing trees (dead or alive) for firewood
Principle 6: Respect Wildlife
Human interaction alters wildlife behavior in ways that harm animals and future visitors.
Observe from a distance:
- Use binoculars or telephoto lenses, not close approaches
- Never feed wildlife — it creates dependency, aggression, and diet problems
- “A fed bear is a dead bear” — animals that become food-conditioned must often be killed
Protect wildlife and food:
- Store food and scented items (toothpaste, sunscreen, trash) in bear-proof containers or hang properly
- Use bear canisters in bear-active areas
- Cook and eat away from sleeping area
- Never leave food unattended
Avoid sensitive times:
- Give extra distance during mating season, with young, and in winter (when energy conservation is critical)
- Avoid nesting areas
- Detour around wildlife rather than pushing through
Pets:
- Keep dogs leashed (many wilderness areas require or prohibit dogs)
- Pick up and pack out pet waste
- Prevent dogs from chasing wildlife
Principle 7: Be Considerate of Other Visitors
Shared wilderness depends on mutual respect and courtesy.
Maintain solitude for others:
- Keep noise low — voices travel far in backcountry
- Avoid bright lights at night (use red light mode on headlamps)
- Camp away from trails and other groups
- Respect quiet hours (typically after 10 PM)
Trail etiquette:
- Yield to uphill hikers (they have momentum)
- Bikers yield to hikers; everyone yields to horses
- Step to the downhill side to let stock pass
- Take breaks off-trail when possible
Group size:
- Keep groups small (many areas limit to 8-12 people)
- Split large groups to reduce impact and noise
- Consider group size impact when choosing campsites
Photography and social media:
- Don’t geolocate sensitive areas publicly
- Consider the impact of social media-driven crowds on fragile ecosystems
- Share Leave No Trace principles along with your photos
Beyond the Seven Principles
LNT provides a framework, but local ecosystems may have specific concerns:
Desert:
- Walk on rock when possible to avoid fragile desert soils
- Extra care near rare water sources — they’re critical for wildlife
Alpine/Arctic:
- Vegetation regrows extremely slowly at high altitude and latitude
- Stay on rock whenever possible
- Avoid wet meadows completely
River corridors:
- Camp well above high-water mark
- Never soap or wash directly in waterways
The Ethics Behind the Principles
Leave No Trace is more than a checklist — it’s an ethical framework based on:
Ecological responsibility: Humans are part of ecosystems, not separate from them. Our actions have consequences.
Social responsibility: Future visitors deserve the same wilderness experience you enjoy today.
Indigenous respect: Many “wilderness” areas are ancestral lands. Leaving cultural artifacts undisturbed shows respect for those who came before.
Long-term thinking: A single careless action might seem insignificant, but multiplied by millions of visitors creates permanent degradation.
Teaching LNT to Others
If you see violations, approach respectfully. Most people don’t know LNT principles — education works better than confrontation.
Good approach: “Hey, I learned recently that [explain principle]. Just wanted to share that — I didn’t know either until someone told me.”
Poor approach: “You’re doing it wrong. Don’t you know about Leave No Trace?”
Lead by example. Visible adherence to LNT principles inspires others to do the same.
Conclusion
Leave No Trace isn’t about restricting enjoyment — it’s about ensuring wilderness remains wild for centuries to come. The principles require minimal extra effort but create lasting benefits for ecosystems, wildlife, and future visitors.
Every trip is an opportunity to practice these principles. The more automatic they become, the less we think about them, and the more we can focus on what drew us outdoors in the first place: beauty, challenge, solitude, and connection to the natural world.
Navigate Responsibly: