black canyon of the gunnison river national park with deep gorge from pulpit rock overlook, montrose, colorado, usa

environment mountains precipice gunnison national overlook montrose colorado vertical plateau erosion natural geology western america canyon pulpit cliffs rugged nature uplift remote clouds cloudy united states black river gorge sheer chasm walls shist rocks rocky parks north park deep rock juan west usa metamorphic uplift geological volcanic vertical deep colorful layers colourful features United States North America outdoors hike hiking trail south rim scenic drive remote cloudy vertigo elevation spires