A major part of mountain biking is experiencing things for yourself. Sure, your friends can tell you all about that sweet singletrack, describe every turn and bank, but until you actually feel the dirt beneath your tires, you won't feel satisfied with any explanation. Thus describes how I felt about Forest Service Road 1N34, also known as San Sevaine Rd, also known as Big Tree Truck Road, which connects Lytle Creek with Cucamonga Canyon. I read 4 or 5 separate reports that stated it was washed out, overgrown, dangerous in spots, full of hike-a-bike, boulder strewn, etc. Of course, in my mind, I thought that once I set eyes on it, looked down its throat, it would melt into majestic singletrack that just begged to be ridden. Well, I was a little wrong. Today we found it to be just about everything all those reports said it was. I will preface this by saying that although we didn't ride the entire road today, from what I've read and seen I think it's definitely passable, albiet not enjoyable in the traditional sense. We started in Lytle Creek then bailed and hiked down the wash in Deer Canyon/Calamity Canyon, which dumps you out onto Haven Ave in Rancho. Soon I'd like to ride up Cucamonga Canyon to the same Deer Canyon wash, just to see that section. I'm definitely bringing shin guards, and I won't be driven by that urge to ride the whole thing. We were able to get an early start over in Lytle Creek, and were on the trail during sunrise. As others have reported, the 12 miles to Joe Elliot campground are scenic and very ridable, giving you nearly 4,000' climbing. Just past the campground, the road is closed yet continues to be in relatively good shape until a second gate, about 2 miles past the campground. This gate is basically the entrance to Day Canyon, where things start to get fugly. The road skirting Day Canyon has seen better days. Long stretches of scree rock, overgrown thorn bushes, and sandy wash outs were common. We hiked across a boulder field with flowing water at the middle of the canyon and started our ascent. Coming around the next turn, we found ourselves entering Deer Canyon and Calamity Canyon. The road seemed to be more overgrown and washed out, if possible, this time with 5-6' rock walls where we passed our bikes to one another. Descending Deer Canyon, we noticed our bail-out option, which would eventually lead us to Haven Ave. We decided to take it, given that we had already been out nearly 10 hours and the road up Calamity Canyon looked time consuming, to say the least. Just under 30 miles and 6,000' of climbing, based on topo maps. Not too bad to satisfy a little curiousity.