Hiding in eastern Idaho is a seriously unique hiking trail that allows you to engage with our state’s natural history like you never have before. Hell’s Half Acre may have a scary name, but the destination is actually downright fascinating. Located within a giant lava field, this hiking trail will lead you deep into the rugged scenery of this unique destination, across ancient lava flows and rugged sagebrush scenery. It definitely makes for a one-of-a-kind adventure you’re bound to remember. And afterward, you can brag to your friends all about how you’ve walked on lava!
Take a walk on one of Idaho's most fascinating landscapes when you visit the Hell's Half Acre area near Twin Falls. Located on the Snake River Plain, this area is comprised of ancient lava flows and it makes for a one-of-a-kind adventure that definitely leaves an impression.
Located about 25 miles west of Idaho Falls and 30 miles north of Pocatello, Hell's Half Acre is about 150 square miles in size. Once you see it, you'll instantly understand why it was given its unique name.
The area is made up of a giant lava field, and the scenery definitely reflects that. Everywhere you look, you'll observe rugged geologic oddities. For a moment, you may just feel like you've been transported to the planet Mars.
Geologists estimate that the lava field was created around 3250 B.C. by lava that flowed at a temperature of 2,000 degrees Fahrenheit. It can be easy to forget that Idaho's landscape probably looked vastly different 4,000 years ago than it does today, but this place is an excellent reminder.
Explore this unique landscape by hopping onto the Hell's Half Acre Loop Trail. Paved the entire way and at less than a mile long, it's a fantastic way to learn more about this rugged landscape. Interpretive signs discussing the geology of the area are conveniently placed along the trail.
One of the most interesting things you'll notice is the fact that the lava field is far from desolate. In fact, the area is bursting with both wildlife and vegetation.
If you've ever wondered what it would be like to walk on lava, this is your chance. It's places like this that remind us of just how diverse Idaho's landscapes are. For more information about Hell's Half Acre, you can visit the BLM website here.
