Wright's Point from the east; photo credit Twilight, via Creative Commons License

Geology 101: Inverted Topography


As you drive south across the Harney Basin on Oregon Highway 201, you can’t miss Wright’s Point. The very long, very narrow, steep-sided ridge sticks out 10 miles into the basin, rising 250 feet above the flat lakebed. The much-diverted Silvies River loops around the easterly end of Wright’s Point, headed further south to Malheur…

The Other Crater Lake


WC is back from a week-long trip to the easterly side of the Oregon Cascades, where the scenery is very, very good but services do not include internet. This is the first of several posts from the trip. Crater Lake, in the Oregon Cascades, is justly famous. That remnant of Mt. Mazama is a near-perfect…

Lake Pend Oreille, looking across to the easterly shore

It’s Pronounced “Ponderay”


WC has written before about the ginormous, ancient, vanished Idaho lakes and the incredible floods they produced. The Bonneville Flood, a one-timer, happened some 17,500 years ago, when Lake Bonneville overtopped the soft rocks of Red Rock Pass, flooding much of the length of the Snake River, and the middle and lower Columbia River. The…

Shoofly Oolites, about 5 times life size; 100mm f2.8 at 6 inches

Geology 101: The Shoofly Oolite


WC knows geology isn’t the most popular topic around Wickersham’s Conscience, but today, at least, it can take your mind off of taxes. WC has written earlier about the massive Lake Idaho that filled much of the western Snake River Plain, in southwestern Idaho. Lake Idaho was an extremely long-lasting freshwater lake, possibly as long…