Anyone else doing the Maryland Endurance Challenge? http://www.mdendurancechallenge.com/

It has 3, 6 and 12 hour options. It is designed to raise money for homeless youth.

This is my first time doing an endurance ride like this. I commute 30-40 miles a day during the week
and have done a few centuries. I suspect I'll be riding a leisurely pace if anyone else wants someone
slow and steady to tag along with!