The San Rafael Swell is a broad geologic uplift in central Utah that hosts some of the scenic sandstone country for which Utah is famous. Although crossed by Interstate 70, the area is rugged and access to much of it remains difficult because of primitive or nonexistent roads. Of course, the limited access also cuts down on the crowds. In particular, the northern part of the Swell is dominated by the Little Grand Canyon of the San Rafael River and its tributaries. As its name suggests, the Little Grand Canyon…