Donalds
The Donalds are the 2000ft hills in Scotland which lie to the south of the Highland Boundary Fault. There are 127 of these (as of 1997) in the Southern Uplands, plus 9 Ochils and 4 hills above Glen Artney which sneak into the list via a geological loophole. Ronald Turnbull ran the lot in May 1995, adding the English Cheviot "Donalds" as well just to be on the safe side. The statistics are impressive:
Ronald covered 450 miles (97,000 ft) in 9 days 14:25.04. His daily average was 43 miles (9700 ft) and 14 hours 22 mins. After 8,600 minutes of running he finished on Cairnsmore of Fleet 25 mins ahead of his schedule [Ref: SHR 1/96].