Harder Road Site. Harder Rd crosses the Cheney-Palouse scabland tract. This roadcut is mentioned in Baker (1973) and other articles on...

Left and middle: A synthetic hydraulic fracture produced in Jell-O using a stainless steel straw and colored syrup. Right: A natural one...

The tops of clastic dikes in the megaflood region appear five ways. 1.) Truncated by a bedding contact or an erosional surface 2.)...

Clastic Dikes in Miocene Basalt Sheeted dikes with sandy fills intrude downward into Miocene Columbia River Basalt in the Walla Walla...

Lateral spreads. A network of lateral spread fractures in pavement formed by an earthquake. Peru 1970. USGS photo archive. Summary...

What Does Periglacial Mean? "Periglacial" is a term that packs a punch. Like "tundra" or "permafrost", it stands in for a full suite of...

Reconnaissance Geologists of the Columbia Basin & Okanogan Highlands A significant number of geologists visited Eastern Washington prior...

Any excusion into Lind Coulee will include some adventure. This outing involves recent faulting and interesting Plio-Pleistocene...