Get a Gem Trek map of Bragg Creek and Elbow Falls, it includes the OHV trails at MacLean. I started wheelin' solo (always better with a partner) by exploring the trails in a bone stock XJ and YJ with the stock Good Year Wrangler tires. I always checked out obstacles on foot before I tried driving them, avoided obstacles if I could and turned back when I thought it was too difficult. I went in relatively dry conditions, chose the best "line" and luckily I never got stuck on those early explorations. I was able to complete several easy trails utilizing this method. I then discovered the CJA and started going on runs with them, it was much better than solo: new wheelin' partners, group resources (winches), broad trail knowledge, camping trips, drinking around the camp fire, more difficult trails, building up the Heep, blah, blah, blah ...