I found BCP372 Edmonton - EMP.
I wasn't sure the best way to access this cap but after finding the two caps in Hawrelak Park then, with the suggestion of the others we made the short drive over to Emily Murphy park to walk along the river to find this cap. After getting close to GZ we had to do a little bushwhacking to get to this cap. We focused on the hole near the marker post and then Willowzilla spotted a divot a few metres away and a quick swipe with the shovel revealed the cap. This was the last cap I did with j0ckster, GeoGuider and Willowzilla, it was short but it was fun. Thanks for the cap in this interesting spot. TFTBC