Snag Lake located in the eastern portion of Lassen Volcanic National Park, was originally called Snaggy Lake, and over the years its named shortened to Snag. The lake was formed 200 years ago from the lava flows that created the Fantastic Lava Beds. Trapped in the lake, after it was created, were a number of pine trees that died and are commonly referred to as “snags.”
The lake is only accessed by hiking or horseback. However, those who make the trek agree its worth it. I made the trek in the early 1980s, traversing most of the eastern half of the park.