After plotting the route we took on Sunday in Garmin BaseCamp, i have come to the conclusion we did not go to Mt.Thurston....
What we did was climb up Army FSR till about a 3rd of the way up thurston, merged onto Bench FSR and skirted around both Thurston and Mt. Mercer, at an avg. elevation of 500m untill we came to Chipmunk Creek FSR. We followed Chipmunk FSR only for a short time and turned onto "unclassified motorized rec. trail" that runs parallel to a hiking path for some distance befor climbing up the side of ..........Mt. Archibald! We were nowhere near the top! We had another 700m to climb for that.
Mt. Thurston was the three peaks that were somwhat close together while we were looking South towards Baker.
The river between the two mtns. Was Chipmunk creek and the Mtns. were Mt.Laughington on the left of the creek and Mt. Mercer on the right.
So for any of you out there that care; Now you know, and knowing is half the battle!