"There are Field Geologists, microscope types, and valley walkers. No others." The Saddle Mountains form a coherent ridge that runs for more than 85km east to west across south-central Washington. The ridge is a north-vergent uplift with thrust faults on its northern flank. There is a prominent footwall bench along a portion of its north flank called Smyrna Bench, composed of sediments younger than the basalt bedrock (Pliocene Ringold Fm, Pleistocene flood deposits, and calcr

An exotic clast-bearing conglomerate at White Bluffs Overlook was left by an ancient Ice Age flood. The post-Ringold unconformity appears to be a sequence-bounding surface that may correlate with a late-Neogene unconformity in the Rocky Mountains. Flat-lying Pliocene Ringold lake beds (<5 Ma) are unconformably overlain by a meter-thick conglomerate composed of subangular calcrete rip-ups mixed with exotic clasts (granite, schist, andesite, quartzite). The conglomerate is Plei

The kame terraces of the Okanogan Valley are Alaskan in scale, but treeless and fully exposed. This extensive multi-level flight is continuously exposed between Brewster and Osoyoos, a distance of 100 km. The terraces record voluminous ice-marginal sedimentation during the final downwasting of the Cordilleran Ice Sheet (Okanogan Lobe) from Eastern Washington. They are composed of a mix of outwash gravels, till, lacustrine sediments, and boulders. Tread surfaces are paired in

J Harland Bretz introduced the world to the vast and deeply scoured Channeled Scabland. Baker calculated flood volumes and the velocity of the flows. Waitt deciphered flood count and timing. The sedimentary record is known by the work of numerous authors and dozens of localities. Deformation caused by the cataclysmic Ice Age floods remains a frontier. In my new book, Flood Injectites of the Columbia Basin, I describe a suite of flood-caused deformation features along a 500 km

In 1941, the talented cartographer Erwin Raisz of Harvard University's Institute of Geographical Exploration published a map showing the Olympic-Wallowa Lineament, a "straight four-hundred-mile-long structural line extending from Cape Flattery to the Wallowa Mountains". The Olympic-Wallowa Lineament crosscuts the whole of Washington, extending from Cape Flattery to the Wallowa Mountains in Oregon. Map by Reidel and Martin (2003). The prominent line diagonally bisects Washingt