I-84 travels upstream along the north bank of the Snake River to Glenns Ferry, where it bypasses the town and Three Island Crossing State Park. The freeway crosses over the river twice east of Glenns Ferry to avoid a bend in the river, which is followed by the railroad. After entering Gooding County, I-84 reaches the town of Bliss, where US 30 and US 26 both split from the freeway and end their concurrency. US 30 travels south along the Snake River towards Hagerman, while US 26 runs east across the plains to Gooding and Craters of the Moon National Monument and Preserve. The freeway continues southeast and crosses over the Mallad Gorge (part of Thousand Springs State Park) on a pair of level bridges. I-84 then passes through farmland on the edge of a lava plain while following an abandoned railroad right of way to Wendell, where it intersects SH-46.
