Wikipedia contributors. (2024, December 15). Julien Offray de La Mettrie. In Wikipedia, The Free Encyclopedia. Retrieved 23:38, May 12, 2025, from https://en.wikipedia.org/w/index.php?title=Julien_Offray_de_La_Mettrie&oldid=1263247696
The Troutdale Formation was named by Hodge (1938) for thick beds of gravels and sands exposed as cliffs along the Sandy River near the town of Troutdale, Oregon.