Union Geyser via Shoshone Lake(edit)

Overview

This is a difficult out and back trail to Union Geyser in Yellowstone National Park.

This trail goes by Two small geysers, Lone Star Geyser Basin, Lone Star Geyser, Upper Firehole, Shoshone Meadows, Little Giant Geyser, Little Bulger Geyser, Shield Geyser, Bronze Geyser, and Firehole Springs.