Post-UC Road Trip — Day 4: Yellowstone National Park — From Mammoth to the Grand Canyon of Yellowstone, wildlife watching in Lamar Valley, ending the day at Roosevelt Lodge.

Three people dressed in outdoor clothing and hats are standing on a wooden platform near a sign that says Canary Spring with a natural landscape of trees and hills in the background.A powerful waterfall cascades into a deep canyon with a river winding through rocky cliffs and a faint rainbow visible in the mist.

Puran Zhang @puran