Made by Wondery. In California, the sights and cities on the coastline tend to get the most attention. What people may not know is that turning your trip around and going eastbound has even more hidden treaures to explore. The Eastern Sierra of the Sierra Nevada Mountain Range is an underrated beauty. The other worldly lakes of Mono and Mammoth and the high terrains of Mt. Whitney are must-sees on your journey in the Eastern Sierras.