Glossary J

Articles containing information regarding Glossary J

• Jet stream influence / big-picture weather

  Jet stream influence refers to the effect of high-altitude, fast-moving air currents on regional and continental weather patterns. These patterns shape large-scale conditions that affect long-distance hiking routes.

• Journal / trail journal

  A trail journal is a written record of daily experiences, conditions, observations, and reflections created during a long-distance hike. It serves as both documentation and personal reflection.

• Jumar / ascender

  A jumar or ascender is a mechanical device used to climb fixed ropes. While rare in standard thru-hiking, it appears on certain technical routes or specific mountaineering-style approaches.

• Jumping ahead (skipping section)

  Jumping ahead refers to temporarily skipping a section of trail and resuming the hike farther along the route. It is done for logistical, safety, or weather-related reasons.

• Junction (trail junction)

  A trail junction is a point where two or more trails intersect or diverge. It is a key navigational feature used to confirm location and route choices.