Hiking & Nature

By Travelog Editorial Team · Updated August 9, 2026

Hiking & Nature covers the practical side of trail travel: the actual Leave No Trace Seven Principles as written by the nonprofit that holds them, when a national park backcountry permit is genuinely required, and what a trail's stated difficulty and elevation gain actually predict. Sourced against NPS.gov, already the anchor for Travelog's Destinations and Camping & RV Trips content, and the Leave No Trace Center for Outdoor Ethics directly.

All three planned cluster pages for this pillar are now live, per ActivitiesInterests-Content-Map.md: Leave No Trace's Seven Principles, national park backcountry permits, and trail difficulty/elevation gain.

Activities & Interests -- the full domain this pillar belongs to.

Live now

Leave No Trace's Seven Principles The seven principles, correctly attributed to the nonprofit that trademarked them -- not the National Park Service, which teaches but didn't originate them.
National Park Backcountry Permits Glacier's $10 permit + $7/night fee, North Cascades' year-round requirement, and Olympic's seasonal access split -- plus the fines for skipping a permit.
Trail Difficulty Ratings Shenandoah's difficulty formula, the genuinely standardized Yosemite Decimal System for scrambling/climbing, and why elevation gain per mile beats total gain.

Hiking & Nature

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