Probably I am forgetting many, but it seems that for a tiny school, Dartmouth has a large footprint in running and track. I can't even think of a well known Harvard, Brown, Williams, Amherst, Middlebury, Tufts etc. runner.
Jon Gault
Abbey D
Bob Kempanain
Chris Zablocki set a wb in the indoor marathon
Adam Nelson
Vin Lananna coached there
Zarnowski just entered USATF hall of fame
Jarrod Shoemaker
Glenn Randall