We ran that canyon green, was a fun day.
It doesn't end up anywhere, on top of a low ridge and it's soft and hard to get all the vehicles out of the canyon at the top. It was late and we didn't know where we'd end up trying to find a way out so we just drove back down the canyon. Finished in the dark. If there is no current sign, and evidence of traffic, I'd run it again. It was a real bummer when the State Parks took over Last Chance. There were all kinds of fun side routes that all got posted no access. It made me so mad I haven't been back to Last Chance since.