Deeply incised and impassible canyons run the length of the Valley. NPS photo by M. Fitz.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/99350217@N03">Katmai National Park and Preserve</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/katmainps/13542676275/">Canyon formed by glacial runoff originating on Mt. Griggs 2</a>