It is the common boundary point between the states of Wyoming, Nebraska, and Colorado. Mike Vermeulen is organizing the ride, through the PEDAL bike club in Loveland. The "basic" trip is to camp at the Pawnee National Grasslands Crow Valley campground at Briggsdale on Friday night, and to ride to WYNECO on Saturday. Mike and I, and perhaps a few others, are expanding on this plan and will be riding from Fort Collins on Friday afternoon, and riding back to town on Sunday.
The total distance for this trip, from my house, is about 180 miles, with 2000 feet of accumulated climbing.
There is more information on Mike's web page:
Mike Vermeulen's page describing the trip..