Visitors climb wooden boarwalk around Mammoth Hot Springs. Large limestone mounds are a scientific marvel in Yellowstone National Park.

---

Size: 4256px × 2832px
Photo credit: © Bonita Cheshier / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: boardwalk, formations, geographic, geological, high, hot, landmark, landscape, limestone, mammoth, mounds, mountain, national, park, path, rock, scenery, scenic, science, springs, standing, tall, terrace, tourists, trail, travertine, upper, visitors, walkway, wooden, yellowstone