Okay, some more research is answering a few of my questions, but I figure I'll post what I find here in case others are looking for the same information.
Michigan Tech: http://www.sportsrec.mtu.edu/index.php? ... Itemid=108
has a lot more information than I found when I searched around about six months ago. This might be all I need to know for choosing the trails to ride and guessing at how long they will take. There's also a cleaned-up map there that shows only the mountain biking trails at http://www.sportsrec.mtu.edu/images/sto ... %20map.pdf
Marquette: Just a text description helped a lot here, and it was available right from the trail list at the MMBA site at http://mmba.org/trail-guide/#79
. Four loops of 5 miles each, mostly singletrack. 45-60 minutes per loop, blue loop is the best. Again, the map has been improved in the past six months - I have the 2011 version printed, and the 2012 version has much better information on it. http://www.noquetrails.org/wp-content/t ... ap2012.jpg
The resolution isn't great, and I saw a note to buy a map from a local bike shop... can anyone suggest one in Marquette where I can purchase a map? Also, there's an iPhone trail guide at http://itunes.apple.com/us/app/marquett ... ?mt=8&ls=1
Copper Harbor: There's an interactive trail guide at http://www.copperharbortrails.org/trails
that took me awhile to sort out... for me, the best thing was to toggle on certain items. The settings that worked well were: HIDE Hiking, HIDE Roads, HIDE Trail Heads, SHOW Epic Ride, HIDE Race Course. This yielded a map of the epic ride that's pretty easy to sort out, and I can hover over each section to see what it's called. Are the paper maps available for purchase better than http://mmba.org/library/maps/copperharb ... ap2008.jpg
Are we skipping any important trails? Are any of these trails closed in mid-late August?