Below is a form for joining the 100 Miler to get reduced trail passes.
Here is the AWSC website to purchase them: AWSC.org.
If you belong to a club, you will need your AWSC number off your yellow card or off the mailing label on your recent copy of their magazine.
You will be purchasing your passes from the AWSC for $10 per sled registered to you.
If you do not belong to a club, you will be purchasing your trail pass from the DNR for $30 per year.