Cairns

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Cairns are little stacks of rock that are used to indicate where a trail is. Once upon a time they were used extensively, but not so often now. So it was fun to see them employed so extensively in Arches and Canyonlands. And we used them a lot. We'd look ahead at the terrain, unsure where to go next until we spotted that little stack of stones.

I like this b&w pic that Jay took of one cairn because, with the lack of other objects in the photo to give a sense of scale, it looks like it could be a tremendous tower of boulders rather than the 6-inch stack of rocks that it is.

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