April Foolish Mystery Cache

I pity da foo.

A  --	Number of legs on the sign at N49° 50.633', W97° 09.224'	And while you're there, check the left leg.
B  --	Number of bridge piers at N49° 52' 7.31", W97° 19' 32.34"	Geez, all the way out at the perimeter??
C  --	Important number? 14U E627987, N5530224	It's a runway, BTW. Did you know they're labelled by direction?
D  --	Width? N50.084133, W96.939754	You looked, didn't you?
E  --	Hole in which? N49° 52' 15.74", W97.101862	Got a membership? Not that it's needed.
F  --	How many used to be here? N50° 1.44714', W96° 53.26962'	How many what?!!? Really, can't I get any more obvious?

The final can be found at:
49° 5A.BC5', 97° 0D.EF2'      Not.