For #9, the T shaped symbol indicates southwest end. The "at the foot" symbol looks like an uppercase L with a dot in the angle.
But I can see how you could be confused. :-)
IOF control descriptions
Ah yes, the SW end. I knew I wasn't reading things right. Thanks! Very easily confused by that point on the course. Great to see you out there!! I saw you on the way to that actual control, I think. You deftly climbed under a big rootstock and scampered away.
I think I remember that rootstock, but I didn't see you out there.
I was well behind you. ;)