Moraine Lake sits at 1,884 metres in the Valley of the Ten Peaks, fed entirely by glacier melt that carries suspended rock flour—the fine sediment responsible for the water's electric turquoise hue. The lake reaches peak colour between late June and mid-August, when meltwater volume is highest and sunlight refracts through the particles at maximum intensity. Parks Canada restricted private vehicle access in 2023 after decades of gridlock along the 13-kilometre Moraine Lake Road, making pre-arranged transport the only reliable entry method for most of the season. The Rockpile viewpoint, a short scramble from the lakeshore, offers the canonical photograph: the lake framed by Wenkchemna Peaks two through ten, named in the Nakoda language of the Stoney people who travelled these valleys for millennia. The composition has appeared on the reverse of the Canadian twenty-dollar bill from 1969 to 1979 and remains one of the most replicated images in North American outdoor photography. First light arrives earliest on the east-facing slopes above the lake, illuminating the peaks while the valley floor remains in shadow—a gradient that lasts roughly forty minutes before full daylight flattens the contrast. Walter Wilcox, an early explorer and member of the Yale Lake Louise Club, arrived in 1899 and mistakenly attributed the lake's formation to a glacial moraine; subsequent geological surveys confirmed a rockslide from the Tower of Babel as the actual dam. The misnomer persisted. Tom Wilson, the Canadian Pacific Railway outfitter who guided the first European visitors to both Lake Louise and Moraine Lake, understood the logistical value of dawn access long before it became a matter of policy. His route from the Chateau Lake Louise stables anticipated the modern road alignment, threading between debris slopes and avalanche chutes that still close the corridor each winter. Today, sunrise tour departures from Lake Louise guarantee passage through the Parks Canada checkpoint before 6:30 a.m., bypassing the shuttle lottery and midday queues. The temperature differential between valley and lakeshore can exceed ten degrees Celsius at dawn; layered clothing and a thermos remain standard kit. Most operators limit group size to fifteen passengers to preserve the pre-crowd quiet that defined the lake's reputation before mass visitation reshaped the experience.