August 19, 2014
I pretty much agree with the rest of the reviews here, except I don't remember it being all *that* hard. It's a challenge, to be sure (and I too have gotten comments from hikers along the lines of "you're here on a BIKE??). I'm a casual rider, grew up on the east coast, and did this trail many times during my college years at Shenandoah. It was (and still is) my favorite trail, even after living in CO and now IL, and riding my share of trails including Fruita & Moab. Perhaps my attitude has an effect on my perceptions, though; my approach isn't "lets see how fast I can ride today" but rather "I'm here to enjoy nature, escape daily life for a while and have a good ride." Signal Knob's got a little of everything and is a great 1-day adventure. Even before you get to the top, there are legendary views of valleys and wonderfully rich forests. Sure, there's some tough sections, and spots that I cannot imagine any human being able to bike through (requiring a bit of bike portage) but the miles of only slightly technical downhill singletrack switchbacks make it all worth it in the end. All in all a really great day out, most certainly worth your time.
The trail is much different now than what I reviewed above. Many, many more rocks than there were 15 years ago. I think erosion is part of it, but there is at least one section of trail I'm 100% sure has been re-routed from days of old and is decidedly less bike friendly now. I cannot recommend this trail for bikes anymore, at all, I don't care how advanced you are. It's not fun. (I'm talking about the loop that is "Signal Knob Trail" up and then blue "Bear Wallow" back down.) This trail USED to kick ass, but it's so different now it may as well be taken off of any "mountain bike" list. Great for hiking and back country camping, though! Several camping spots along Signal Knob Trail as you go up.