The trailhead is good! There are two stream crossings that are about 5" or so deep. A couple of difficult vehicle moves if you have low clearance. Parts of the road are washed out near the Cinnamon Pass turnoff.
I had no trouble getting to the trailhead in my GMC Jimmy, and it is relatively low. Just go slow.
Also a nice side note: Hinsdale county is applying Magnesium Chloride to the road from where it is dirt until 1 mile towards the Grizzly Gulch Trailhead after you turn off.
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