A wide-angle view across the surface of the Black Rapids Glacier in the Eastern Alaska Range, Alaska, in early summer. The bare blue-gray glacier ice fills the center and right of the frame, with supraglacial meltwater channels carved into the surface catching the evening light. A rocky lateral moraine with boulders occupies the left foreground. Snow-patched mountain ridges frame both sides of the glacial valley in the background. A dramatic cloudscape with warm sunset tones fills the upper sky.
A close-up view of a supraglacial meltwater stream flowing along the edge of a medial moraine on the Black Rapids Glacier, Eastern Alaska Range, Alaska. Water cascades down a steep blue glacier ice face on the left, flowing around and between large boulders in a shallow channel carved into the ice. The glacier surface and rocky moraine extend to the right. Snow-patched mountain ridges are visible in the background under a partly cloudy sky with warm evening light. Early summer.
Camping on the moraine of the Black Rapids Glacier in early summer, you fall asleep to the sound of meltwater running in channels below. Supraglacial streams drain off the ice surface, some of them disappearing down moulins beneath the glacier.
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