Gibralter and Steamboat

A favorite photograph from very early 2018 of two of my favorite Grand Coulee landmarks. Gibralter, in the foreground, is a mass of the same granitic batholith in which Grand Coulee dam is anchored. Beyond is Steamboat Rock, mostly basalt, and a remnant of the former land surface, before ice age floods swept through with such force as to expose both the basalt and in places like Gibralter, the underlying granite.