6633 Ultra 2007 March 18, 2007 Abichal Multiday News 0 The inaugural 6633 Ultra is under way in Eagle Plains in the Yukon, Canada. The 120 mile race finishes on Monday while the 320 mile optionb ends on the 25th. Checkout the race updates at 6633 Ultra Get your free online Ultrarunning World magazine I agree to have my personal information transfered to MailerLite ( more information ) Join over 2,000 subscrbers who are receiving the latest Ultrarunning news. Absorb the stories, contribute your experience and advertise your events.We hate spam. Your email address will not be sold or shared with anyone else. Multidays.com The home of multiday running news and events.