A.M. 20 miles total. 8 mile warm-up, then did 3x2 with 1 mile recovery jog down the Provo Canyon. The first one was from Vivian Park to the waterfall. This was was the hardest because the first half of it is flat and it is at 5200 feet. The split was 10:41 or close - the marker was actually missing, but I saw the split with 300 to go and am estimating. Then I jogged a mile backwards and ran from the middle of the woods to a little bit past Nunn's park in 10:33.3. The last one was from the waterfall to a little bit past the tunnel, and it was the fastest because I increased the effort knowing there was nothing left except the jog back home. I was also being spurred by the runners in some race (5 K I assume) that provided a constant stream of nice easy to reach goals. The time was 10:31.7. It was the hardest interval, though, not just because it was the last and the fastest, but also because it started getting warmer.