We took a short trip to Boise Idaho last weekend. On the way, we passed the Craters of the Moon Monument. This is one of my favorite US monuments. Craters is a series of large recent volcanic flows in an arid medium altitude environment. Recent flows date to a few thousand years ago but the dry environment limits plant growth so bare black rock stays bare and black for centuries. I’ve visited three times now but I am far from sated. Craters is a photographer’s paradise. Everywhere you look interesting subjects jump out. Shooting craters requires more finesse than usual. The pitch black volcanic rock and bright skies challenge automatic camera metering. Use your exposure compensation button and bracket or you will be deleting more image files than usual.