Rainbow Lake Professional Review and Guide
"It’s not the prettiest, or the biggest, or the deepest lake in Lassen Volcanic National Park, but Rainbow Lake has an intangible and very inviting ambiance. Perhaps its special to me because I was able to rest and refuel on its pleasant, secluded shores on several occasions, undisturbed by pests of any kind, including the sometimes ubiquitous mosquito. You might call it the mother of Lassen’s lakes, not overwhelming in any way, but always there, always comfortable, always welcoming. Highlights: This small lake sits in its own secluded basin on the southern flanks of Fairfield Peak."