Muddy Creek created an impressive canyon NW of Hanksville where it breaks through the San Rafael Reef.
Its not always possible to travel through: too much water, flash flood danger and occasionally a very soft canyon floor.
Some pictures:
Th creek outside the Swell
http://hatchcanyon.eu/Inhalt/Clay-Hill-Crossing.jpg
Canyon mouth
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB07.jpg
Entering the canyon
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB11.jpg
Tight and shady
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB17.jpg
Walls
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB19.jpg
Buttes
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB24.jpg
Rockfall
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB26.jpg
Flat
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekA06.jpg
Buildings of Vernon Picks Hidden Splendor Mine aka "Hidden Blunder
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekB31.jpg
View back from the old landing strip
http://hatchcanyon.eu/Inhalt/San_Raf...dyCreekA07.jpg
Much more pictures (with German text): http://hatchcanyon.eu/Inhalt/San_Raf...dy_canyon.html