<p>Filmmaker Ben Masters explores a waterfall on his horse, Luke, as he rides toward Yellowstone National Park to meet up with Army veteran Ray Knell, who was on a solo, 1,000-mile journey up the Continental Divide Trail from Colorado to Montana.</p><p><a href="http://adventureblog.nationalgeographic.com/author/bencmasters/">Follow the story &gt;&gt;</a></p>

Backcountry Waterfall

Filmmaker Ben Masters explores a waterfall on his horse, Luke, as he rides toward Yellowstone National Park to meet up with Army veteran Ray Knell, who was on a solo, 1,000-mile journey up the Continental Divide Trail from Colorado to Montana.

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Photo by Michael Ciaglo

Your Shot: Paddling Pictures

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