banff national park with johnston canyon and creek, canadian rocky mountains, alberta

alberta america attraction banff blue bow canada canadian canyon cascade chasm cliffs deep destination early eastern environment glacial gorge heritage hike hiking impressive johnston landscape leaving limestone lower melt morning mountain mountains narrow national natural nature north outdoor outdoors park parks parkway pool popular power river rockies rocky rushing sheer short side site sky tourism tourist trees turquoise unesco valley walls water waterfall waterfalls waters west western wild wilderness world cliffside walkway falls