Per the page, the origin is under investigation. Accoring to the USFS maps, trails in the Auk Auk Ridge area and some around Davis Flat/Fouts Springs were in the burn area, but it looks like most of the trail network was spared.
I guess that takes care of the Mine Camp ridge trail. They have quite a few pictures on web site now. Gotta go, Georgetown ride today. Aren't vacations great:)