Great start at Pond Mt through #2 and 80% of the crow-flight distance to #3. Then BOOM. I mistook west for south and went way far afield in bewilderment. Decided to quit, go NW to skirt the OOB back north. But when I finally saw where I was on the map -- the creek below east-facing cliffs on the western frontier, I decided to hunt for #4 and then on to #3. Found #4 then could not find #3. Wandered back to #4 again and this time checked compass every 6 to 10 meters, staying on azimuth and not trying to avoid steep climbs over knowls. Found #3. By now pretty exhausted. Straight to #5. Stopped a stone's throw too short on way to #6, got confused in the scree, went high and failed.
At this point my right hip was in pain and I opted to quit by descending west to turn north to find gentler slope to transit. Discovered the slot going up to #7 so stopped by to punch it. Didn't even look for eight. Followed field's edge to #9. At trail on way to #10, had no enthusiasm for climbing again and followed trail down and around to the Finish.
Bah. My route.
Maybe there was Confusion Gas in my car: apparently Charlie, who shared the ride with me, had trouble too. Will fumigate the Audi.