I think there will be many in the USA with big totals. I quickly found this looking at KX0R’s s2s log:
29/Aug/2017 17:24 KX0R W1EJ W6/CN-007 Mount Harkness W0C/FR-007 Rosalie Peak 10MHz CW
Total of 6590m or 21,621 ft.
I just found this going back a few years:
02/Aug/2014 19:29 KX0R N5XL W0C/FR-003 Mount Evans W0C/SR-029 Parry Peak 14MHz CW
Total of 8430m or 27,657 ft. Now that’s getting up there mountain goats!
73, Barry N1EU