Oregon’s biggest mud puddles are once-and-future inland seas

Published: March 10, 2021, 2 p.m.

Summer Lake, Abert Lake and Goose Lake were once all part of a vast network of seas surrounded by lush vegetation. In dry years they can evaporate completely — which led to some confusion on the Applegate Trail one year. (Harney and Lake counties; 1850s) (For text and pictures, see http://offbeatoregon.com/1701c.alkali-abert-goose-lakes-426.html)