Bob Weber A sign opposing coal development in the eastern slopes of the Livingston range southwest of Longview, Alta., Wednesday, June 16, 2021.THE CANADIAN PRESS/Jeff McIntosh June 22, 2021 - 3:05 PM Two coal companies planning to develop mines in Alberta's Rocky Mountains say they hope to move forward despite new regulatory and political roadblocks. "We feel that our mine plan that we are going to present is unique to the situation we're in," said Peter Doyle, head of Montem Resources, which hopes to build a new open-pit mine in southern Alberta on a previously worked deposit. Riversdale Resources, which had its proposed Benga Mine denied last week by regulators, said in a statement it will study the decision to ensure it was fair.