Save This Event For Later Muddy Onion Spring Classic - 2018 Montpelier, VT, Sat Apr 28, 2018 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 20 Langdon St., Montpelier, VT 05602 Presented by Onion River Outdoors and the Montpelier Area Mountain Bike Association This is a past event. If you wish to see the details for this event click, "Continue" below. If you are looking for a current event, please search the event calendar .