Jacob Durr Road needs some *serious* repair--it is basically inaccessible to those without a 4WD unless you are very stupid (like me, who made it all the way past the Umtanum creek trailhead in a Chevy Malibu 4-door sedan with ~8 inch clearance, including fording the creek after dropping large stones to gauge the depth of the water, and then hoping it wasn't going to rain anytime soon). I would not recommend the lengthy drive from the highway to this particular trailhead, even though it does put you in the thick of things with an expansive view. For someone more in love with the greenery of Western Washington, I have to say that I wasn't sustainably impressed with the brown, sage-brush landscape around Yakima. The hiking was fairly easy, but the wind was non-stop. Without the cloud-cover, I can only imagine how unbearably hot the high-hills portion of the trail would get. The campsites around Umtanum Creek were nicely green with a few big trees, but people had obviously allowed their horses to defecate indiscriminately all over the campsite instead of keeping them at the further tie-ups and there was nowhere to put a tent down without the threat of poo beneath your face. The final straw was the copious sound of gunfire from the road above the creek where locals were shooting their rifles across the valley. This seemed to be the primary use for the back-country along "historic" Jacob Durr Road as there were many improvised pull-outs littered with shell-casings and beer bottles/cans on the way in. Hmmm... come to think of it, this was a pretty lousy "hiking/camping" experience, but memorable, I suppose. I was very desperate to escape the protracted rain of Western Washington and begin the hiking season but wouldn't recommend this trail, particularly this late in the season with no wildflowers. For a good time, BYOB & Kevlar helmet. Go see a movie.