Good Lord! A friggin hike and a half. Would be good to do this route as an overnighter, buut we opted for the day hike. The road to get to the main trailhead is locked due to constuction till june on a side note... that adds a good 4.5 miles to the hike. Must have been 12 to 14 miles half of which was boulder hoping. Then about half way through we ran out of water and had to drink the river water. We did not die. So it must be ok. Anyhow really awesome hike. highly recommended.
here's a more in detailed description as well as directions to this hike.