Kelson Reads commented on The Lathe of Heaven by Ursula K. Le Guin
Content warning Minor spoiler re: Cascades
Vaguely amused that all the timelines so far have Mt. St. Helens intact, but Mt. Hood has erupted in several.
It's not like there was any indication in 1971 that a specific volcano would go off in the area, and Hood being closer to the Portland setting is a more dramatic choice.