(Confluence Partners, LLC via AP) This undated photo provided by Confluence Partners, LLC, shows a view upstream on the Colorado River in the Grand Canyon at the site for a proposed aerial tram. Navajo Nation lawmakers will consider a plan Tuesday, Oct. 31, 2017, to build an aerial tram to carry visitors to the bottom of the Grand Canyon. The special session in Window Rock, Ariz., will be the first time the full Tribal Council takes up the bill.