eTrails is a free electronic guidebook app, presently available for the iPhone and iPad at the App Store. eTrails displays your location, your trail, points of interest, and nearby trails on a high-quality USGS topographic base map. No cell coverage is required.


eTrails covers the following regions. Glick on the GPX link to download GPS tracks and waypoints.

  • Afoot and Afield Los Angeles County: (GPX)
  • Afoot and Afield Orange County: (GPX)
  • Afoot and Afield Inland Empire: (GPX)
  • San Bernardino Mountain Trails: (GPX)
  • Trails of the Angeles: (GPX)
  • Day & Section Hikes Pacific Crest Trail: (GPX)
  • Pacific Crest Trail: Southern California
  • An extremely detailed guide to the Pacific Crest Trail with thousands of points of interest including water, campsites, trailheads, resupply points, and notes about botany, geology, and history.
  • Pacific Crest Trail: Northern California
  • Pacific Crest Trail: Oregon & Washington
  • Screen Shots

    Map View
    Elevation View
    Databook View
    Guidebook View

    National Forest Maps

    The following maps are published by the US Government and are freely available, but are sometimes difficult to find online.

  • San Gabriel National Monument
  • San Bernardino Mountains
  • San Jacinto Mountains
  • Cleveland National Forest (North)
  • About the Author

    David Harris is the author of eTrails and many Southern California hiking guidebooks and engineering textbooks. David grew up rambling about the Desolation Wilderness as a toddler in his father's pack and later roamed the High Sierra as a Boy Scout. As a Sierra Club trip leader, he organized mountaineering trips throughout the Sierra Nevada. Since 1999, he has been exploring the mountains and deserts of Southern California. He lives with his family in Upland, California, and delights in sharing his love of the outdoors with his boys.

    Wilderness Press Guidebooks:

  • Afoot and Afield Inland Empire
  • Afoot and Afield Los Angeles County
  • Afoot and Afield Orange County
  • San Bernardino Mountain Trails
  • Trails of the Angeles
  • 101 Hikes Southern California
  • Day & Section Hikes Pacific Crest Trail: Southern California

  • Privacy Policy

    eTrails does not collect or store any personal data.