Big Springs & Johnny Sack's Cabin - Kabino

Big Springs & Johnny Sack’s Cabin


About Johnny Sack’s Cabin

In 1929, Johnny Sack leased a small tract of land from the United States Forest Service and began building his log cabin at Big Springs. Little did Johnny know when he first acquired the choice building site, his home would become a landmark one day discussed in the United States Congress. Due to its unique location and picturesque setting, Johnny’s cabin and nearby water-wheel have long been one of the most photographed sites in Island Park.

About Big Springs

Producing over 120 million gallons of water each day, Big Springs a Natural National Landmark is one of the 40 largest natural springs in the world. The springs create the headwaters of the Henrys Fork of the Snake River which travels across Fremont County creating spectacular scenery at Upper and Lower Mesa Falls. With a constant temperature of 52 degrees, the springs is home to rainbow trout, muskrats, ducks, moose and other critters. It is not unusual to see osprey and eagles dive for a meal of fresh fish from the springs.

Click on the orange links below for more information!

Things to Know


The cabin is open to the public from mid-June through mid-September (from 10am to 4pm). Winter access is often restricted by snow.


While home to large Brook and Rainbow trout, they are protected in this area, meaning fishing is prohibited. You can feed and watch the trout from the bridge.


Discover osprey, bald eagles, waterfowl and the occasional moose, white-tailed deer and muskrat along the half-mile ADA-accessible trail.


Big Springs is bear country. Be sure to practice safe food storage techniques and be Bear Aware.

Check out the Fremont County Parks and Recreation link to see the 3D tour


Check it out on


It’s about a 5 mile drive East from Hwy 20. From Hwy 20, go East on S Big Springs Loop Rd and pass over the Henrys Fork River Bridge. There will be a parking lot on your right after the bridge.

Johnny Sack Cabin
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