Arizona has just about everything ... A wide swath of sand surrounds the palms and a designated swim area. With small waves lapping the shore and gulls crying overhead, it’s easy to forget ...

I won a permit and hiked The Wave, an unmarked trail that runs through Utah and Arizona. Only 64 permits ... There are stretches of soft sand, which can be challenging to walk on, and steep ...

Black and brown round pebbles fill the low spots all over White Pocket. These metal-looking balls are made from iron and ...

THE sand waves dealt with in this paper are not the well-known “current mark,” or ripple mark of rivers, but the larger sort, first scientifically described by Prof. Osborne Reynolds.

He starts with descriptions of waves and ripples in blown sand, and passes later to the similar forms produced under water, giving many good photographs to illustrate their various characteristics.