"Too thick to drink, too thin to plow..."

Even though it never rains in the Canyon, thundershowers can fill side canyons.

And even though the the Colorado has been throttled at Glen Canyon Dam, these side canyons (especially Paria Creek and the Little Colorado) can send large muddy floods that give a hint of what the Colorado must once have been.

A mostly submerged tree rolling in the boiling water. We didn't investigate too closely.

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