I tend to ride the same route until I feel I have become comfortable with it and then I start looking to expand it further. Started out with a 10 mile route, worked my way up to 15, and am now working on a 20 mile route. This is for my two or three weekday rides that I do before going to work. For the weekend rides, I have a current route of 25 miles but it requires a drive of 30 minutes to get to the trailhead. I am looking for one in the 35 mile range with a much closer starting point. Anyone have any suggestions for a north-Dallas / Frisco route?