The Hunt for

Iceberg Erratics

Ice-rafted erratic boulders from the northern Rocky Mountains now residing in Northwest Oregon and Southwest Washington

Researched, written and photographed by

 Rick and Sylvia Thompson

32 pages, 17 locations (with maps and GPS), 81 photographs, introduction to iceberg erratics, how to identify erratics, types of erratics, and a page for your own discoveries.

$12.00

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Revealing the Monumental Effects of the

Largest of the Lake Missoula Floods

Contact GigaFlood

Revealing the evidence for the Largest of the Lake Missoula Floods

 in Northwest Oregon and Southwest Washington