Dang, somehow I missed all these replies.

Thanks for the offer to ride with us! That sounds groovy, but don't count on it. I'll have to sneak away from the hotel and it maybe just too hard (and spontaneous).

However! I found this cool book online, published in 1994, called Mountain Biking in Northern New Mexico: Historical and Natural History Rides. It describes all these mountain bike rides where you can go by ghost towns, lava flows, fossil beds, etc. The book is very detailed (although I do wonder about changes in the last 12 years). I am more pumped up about taking the bikes, now.

When I have more time, I'll post directions to some of the rides and see if anyone is familiar with the areas. I think my boy is really going to like these rides. He wants to go to Big Tubes, for sure.

Thanks!
Karen