s Identify and describe three common hydrothermal features. Name at least five colors found at the hydrothermal features and a key to identify the processes which created them. Explain two important safety rules for enjoying and learning while in hydrothermal areas. Explain how hydrothermal areas are formed and continue being active. Time Required From the parking lot to Bumpass Hell and return, allow 3 hours. Location Bumpass Hell hydrothermal area of Lassen Volcanic National Park. Materials Hydrothermal Area Field Trip Guide – one for each student Writing instrument – pencil or pen Pair of b