Trailpedia is a free, independent reference for the outdoors — a glossary, comparison library, and toolkit covering climbing, hiking, mountaineering, trail running, snowsports, camping, gear, materials, and navigation & safety.
We define more than 500 terms, publish dozens of side-by-side comparisons, and build free, science-based interactive tools — all in one place, clearly written for every level from beginner to expert.
Our approach
Trailpedia follows a citations-first philosophy. Rather than relying on a single personality, every definition is written plainly and grounded in authoritative sources — the standards bodies, land agencies, medical authorities, and manufacturers that define each field. All content is maintained and reviewed by the Trailpedia Editorial Team.
Read more about how we research and review content in our Editorial Guidelines.
What you’ll find
- A searchable glossary of outdoor terms across nine disciplines
- Side-by-side comparisons that settle common gear and technique debates
- Free calculators and tools built on published science
Get in touch
Spotted an error or have a suggestion? We welcome corrections and feedback — please contact us.