The name of the road on the West side of the lake is Tripp road. The road that runs down the east side of the lake is called north end road. BTW, most of the trout in the lake, are cuthroats. I used to get trout over 20" in St. Mary's pretty regularly. I think the larger ones are getting harder to come by these days. So please be kind and release the larger ones. Someone illegally stocked yellow perch in the lake a while back and I think it has hurt the trout fishing. Good luck, and hopefully you may pick up some Bass too. Bass are a blast to catch on a fly rod.