The Mesa Nature Trail begins on the dirt road to the Upper Mesa Falls overflow parking lot. The first mile of the trail is wide and smooth. Pause a half mile in to admire the Henry's Fork from the top of a lava field.

The trail terminates at a flat bluff overlooking the top of Upper Mesa Falls. To get closer, follow the narrow trail that heads north from the bluff. 

The trail, steep and covered with loose dirt, quickly descends to the edge of the river. Follow the river south through a boulder field of lava rock until it reaches a small flat rock at the edge of the waterfall.

Use extreme caution to admire the steep plunge of water down the falls.

To admire Upper Mesa Falls without the scramble, drive south on the Mesa Scenic Byway to the Upper Mesa Falls viewing deck.