Outside Online: Forbidden - Article about traveling to the salt mines of Mali. - http://outside.away.com/magazine/1097/9710forbid.html
National Geographic Adventure: Lewis and Clark on the Rocks - Cahill reflects on his assignment on the Lolo, a dangerous trail through the Bitterroot Mountains. Includes audio clips and an excerpt from the article. - http://www.nationalgeographic.com/adventure/0204/lewis_and_clark.html
Outside Online: Out There - Cahill's column in Outside Magazine. - http://outside.away.com/magazine/0199/9901outthere.html