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Twenty Mile Trail

Bonneville County, Idaho

Overview

These undeveloped trails offer scenic solitude; there is a short 0.5 mile loop trail and a 4.5 mile trail to the main vent of the Hell's Half Acre flow. Trail routes are marked with poles across lava. A picnic area, fire ring and portable toilets are located at the trail-head. This is treacherous rocky terrain and proper footwear is advised. It also gets very hot and there is little to no shade so proper sun protection and water is advised.

Amenities

  • WaterNo
  • ElectricNo
  • PetsNo
  • ReservableNo

Conditions

Live conditions for this spot aren't wired up yet. Until they are: check the forecast for Bonneville County, Idaho, pack layers, and leave word with someone before you head out.

Reviews

When accounts launch, this is where trip reports, ratings, and field notes for Twenty Mile Trail will live — real notes from people who actually went, not star averages from nowhere.