By popular request, my new book, Grand Canyon Rim to Rim History, is now available on Audible. Listen while you run. More than a century of history about crossing the Canyon Rim to Rim. Learn who created the trails, the bridges, and how. The races that were held from 1970-1992, and the fastest known times.
Audible: https://ultrarunninghistory.com/arimtorim
Paperback/Kindle: https://ultrarunninghistory.com/bookrimtorim
Sample page:
