Settlers gave this name to the narrow passage of the trail through the rocks, from the fear of possible ambush by Native Americans.

[5] A notch in the cliff on the north bank of the Snake opposite the park was the site of an ancient waterfall of a side channel of the waters in the aftermath of the flood.

[2] This state park is home to various birds which are Canada goose, great blue heron, grebe, pelican, bald eagle.

The footpaths also provide access to remnants of the original Oregon Trail on the south side of the highway.

The park offers trails for hiking and biking, a disc golf course, campground, and access to the Snake River.