Check this out: https://www.facebook.com/photo.php?v=10201673676142620
Locals have been pre-riding many of the trails, and are giving thumbs up saying skinny tires are fine. I wouldn't want to disagree with them, but do suggest you ride the fattest tire you can fit.
That said, these are currently on sale, and I would recommend them to anyone that can fit that size but not larger: http://www.velomine.com/index.php?main_page=product_info&cPath=138_396_400&products_id=2806
If you can fit larger, Clement MSO 40mm would be the tire of choice, but those run 38-39mm.
Most Challenge tires fit pretty true to size, and are a bear to install. But that Almanzo would be a screamer for this ride!!!
Hat tip to Dr. Of The River for sending this my way! No affiliation with any of the companies linked to above, yadda-yadda, the bisque was great.