Pettingel Peak is perfect if you need something in a pinch. Only 45 minutes from Denver, right off of I-70. The east ridge is fun and intriguing. I would rate it class 3. The most difficult aspect of the day was trying to hold back and not strangle every dog owner who had their dogs off the leash pouncing through the delicate alpine tundra. I over heard some idiot talking about how he was mad at himself for forgetting to bring his dog a tennis ball to fetch! Where the hell was he going to throw that freakin ball! What an ass.