Geyser images limited to clouds of steam alone are generally not very expressive. I fell into that trap in Yellowstone – many of my geyser shots, which felt good to make, are actually little more than description. Geyser steam needs color and context to work as expression. In this case, I used a 28mm wideangle lens to create that context and took advantage of the pinkish glow that comes just after sunset to bring a touch of color to the scene. I lead the eye to the geyser by including a good part of the wet terrace that surrounds the geyser. Long fingers of rocky soil on that terrace point to Castle’s distinctive cone in the distance, as a vast column of pink tinged steam explodes into the sky.