Shelburne Falls Figure Eight loop: serious hills

I rode this last night(7/20/2010), with the Bicycle World Tuesday night ride group. We rode it pretty fast.  There are basically only two hills, Clesson Brook Road, and Whitcomb Hill Road. There are other hills in between, but mostly inconsequential.  Whitcomb is an average of 9% for two miles.  The ride back from Whitcomb is a fast ride, averaging 25mph or so on the flats, and up to 29 or 30 on the downhills with a paceline. Of course, the descent into Monroe is much faster, averaging more like 45-50mph.  The Buckland town line is a tough sprint, after all those hills, and fast paceline for the previous 15 miles or so.  Great ride, and great training ride!