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Hell's Half Acre Wilderness Study Area

Shelley, Idaho · Bonneville County

In Idaho, BLM manages over 66,000 acres of public lands in the Hell's Half Acre Wilderness Study Area. The 5200-year-old lava flow resembles flat moonscape with deep crevices and sparse vegetation. Pioneer plants, such as lichens and mosses, inhabit the barren lava surfaces. Mule deer, antelope, coyotes and rabbits are…

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43.47222, -112.34694
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About Hell's Half Acre Wilderness Study Area

In Idaho, BLM manages over 66,000 acres of public lands in the Hell's Half Acre Wilderness Study Area. The 5200-year-old lava flow resembles flat moonscape with deep crevices and sparse vegetation. Pioneer plants, such as lichens and mosses, inhabit the barren lava surfaces. Mule deer, antelope, coyotes and rabbits are the most frequently sighted mammals here. Sage grouse and mourning doves can also be seen inhabiting the lava flows.

Plan Your Visit to Hell's Half Acre Wilderness Study Area

Heading to Hell's Half Acre Wilderness Study Area? A few things to know before you go:

  • Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
  • Fees: day-use and camping fees vary; check current rates on the official park page
  • Trash & pack-out: follow Leave No Trace principles
  • Wildlife: store food in bear boxes where provided; never feed wildlife
  • Weather: the 5-day forecast above is updated every 6 hours; verify just before you go

Frequently Asked Questions

Do I need a reservation for Hell's Half Acre Wilderness Study Area?

No central reservation system listed for Hell's Half Acre Wilderness Study Area. Check the official page (https://www.recreation.gov/recarea/14950) for the latest entry policy and availability.

How do I get to Hell's Half Acre Wilderness Study Area?

Located in Bonneville County ten miles west of Idaho Falls, Idaho.

How do I contact Hell's Half Acre Wilderness Study Area?

You can reach the park at phone: 208-524-7500 or email: BLM_ID_UpperSnakeOffice@blm.gov .