Sports and recreation
Day hiking (established trails)
Estimated acute risk associated with a day hike on established, well-marked trails.
Base risk estimate
0.003 micromorts per hours
Population-level estimate. Not a personal prediction.
Assumptions
Assumes a day hike on established, maintained trails with appropriate equipment and reasonable fitness.
Limitations
Risk varies by trail difficulty, elevation gain, weather, party size, navigation skill, and physical condition.
Source notes
Placeholder value for development only. See hiking-hour source guidance. NPS search-and-rescue statistics distinguish between trail difficulty levels and may support differentiation between day hiking and backcountry hiking estimates. Wilderness & Environmental Medicine journal is the primary peer-reviewed source for wilderness recreation fatality epidemiology.
Last reviewed
6/10/2026