@visitcalifornia: Welcome to California’s mini Yellowstone! 🏞️ Lassen’s Bumpass Hell area has steam vents, boiling pools, and bubbling mud pots! 🌋 Hike the 3-mile trail along an elevated boardwalk, taking in all the sights (and smells!) of the largest hydrothermal area in California. 😮 Visit before the trail closes for the season at the end of October! 📍Bumpass Hell, Lassen Volcanic National Park #VisitCalifornia #LassenVolcanicNationalPark #NationalParks #FindYourPark #California