Footsteps reveal solid ice beneath a thin layer of glacial silt in this tunnel carved into the ice of Black Rapids Glacier by a melt water stream.

---

Size: 5712px × 3808px
Location: Alaska, United States of America
Photo credit: © Steven Miley/Alaska Stock / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: absence, alaska, black, cave, extreme, footprint, formation, frozen, glacier, ice, melt, mountain, outdoors, people, range, rapids, silt, stream, terrain, tunnel, water