I drove down to the bottom of the canyon and ran on the shoulder of the roads. It was (at best) 10 degrees and snowing and the footing was pretty sketchy.
13 miles in 1:30. Average 6:55 pace with 1200ft of climbing all between 6200-6700ft altitude.
The last 2 miles were uphill at HR 170-175. Before the last 2 miles I was averaging 6:46 pace so I lost a lot of pace at the end. I'm happy with this run though. The footing was very slick and as I said, it was maybe 10 degrees. My cheeks are tender and a bit burned. Solid backup to yesterday, which I forgot to post the totals... 12 miles with 2400ft of climbing at 8:38 average pace