Educational use
Gradient Trail provides educational planning information, route comparison concepts and lightweight calculators. The content helps readers ask better questions before a park visit; it is not official park guidance, professional safety advice, medical advice or accessibility certification.
Reader responsibility
You are responsible for checking current official park information, weather, closures, road status, route conditions, transportation, facilities and your group's ability before visiting any trail. If official information conflicts with this site, use the official information.
Calculator limits
Time, effort and gentleness estimates are planning aids. They can be wrong when surface, heat, altitude, snow, crowds, smoke, closures, mobility needs or group pace differ from the assumptions used in the article or tool.
Content changes
Gradient Trail may update, remove or correct pages as sources change. Links to external sources are provided for verification and may change outside our control.