Our friend at ridetassie.com sent us this link to the new (and I think official) Ride Blue Derby website which is worth checking out while you're waiting for the trails to open on February 7. It looks like it will be a great resource for those looking to go and ride the area, and let's just hope that the site is maintained and kept up to date.
My plans are to get up there and ride the trails when they open in February, but in the meantime some of the existing routes in the area can still be found here.