At first sight this one looked to be impossible, but once I'd read the dog's tale I could see what the pattern was and then the co-ordinates tumbled out. A good puzzle - I didn't realise I could speak dog.
Some great views from here. The co-ordinates were almost bang on so I didn't have any problems finding the cache. I found it in the first place I looked - but it would've been hard to miss such a big ammo can.
I signed the log but took nothing. I was just about to put the cache back when I heard a couple of cyclists approaching around the corner and I just managed to avoid getting muggled.