Open this photo in gallery A section of the eastern slopes of the Canadian Rockies is seen west of Cochrane, Alta., June 17, 2021.... Jeff McIntosh/ The Canadian PressTwo coal companies planning to develop mines in Alberta’s Rocky Mountains say they hope to move forward despite new regulatory and political roadblocks. Riversdale Resources, which had its proposed Benga Mine denied last week by regulators, says in a statement it will study the decision to ensure it was fair and not what it calls