Big beautiful butterfly migration making its way through Lassen Volcanic NP 😍 📍Bumpass Hell Trail This park is famous for having huge summer migrations of the California Tortoiseshell butterfly. The peak of migration usually happens in July & August. You can see them on Lassen Peak, Bumpass Hell Trail, and Helen Lake. It’s an amazing site to see in person with thousands of butterflies flying around you. Besides the gorgeous trail the butterflies were an added bonus 🦋 #lassenvolcanicnationalpa