Geysers, hot springs, fumaroles and volcanic craters are pinpointed across Yellowstone National Park in this interactive terrain map. A digital elevation model rising to 3,413 metres sits beneath the park boundary, contour lines, roads and trails, and photo-linked viewpoints show the landscape from the ground. Hikers can plan an itinerary, geology students can study the caldera, and park services can see how a visitor map comes together.