That's a good question actually. The first time we did it, I found out about it from a friend, and now I think we're on their mailing list. And the same friend is super in-the-loop and reminded me this year to sign up early before it closed. I'd try emailing building@chrisking.com and asking if they have a contact list so you can get notification next year!

Some of the staff did a pre-ride of the course this weekend and there's a cool blog post up with pictures. Fun fun fun! Doing 70 miles in one go is going to be a stretch for me - I haven't done more than 45 in one ride in awhile, but I did do two 30 mile rides last Thursday (morning and evening) so hopefully I'll be ok. At least there are plenty of rest stops and chances to recover. And it's not too hilly of a route other than at the beginning and end.