Not enough miles but lots of quality runs.
A week of altitude in Mammoth, where I ate too much and ran too little. Two decent runs Up to Twin Lakes and one amazing run from Olmsted Point towards th Yosemite Valley.
Luts of running on the treadmill. The two main workouts were 2x(4x800). Rest 200m@ 6.2 mph. Last 800 is actually a 1000, where the last 500 is at 0%. I believe the fastest time was 14:55.
The other workout is 3x2 miles with 4 minutes rest. The 2 miles are run at a "pyramid grade", where the grade is increased until 1.5 yards and then rapidly decreased (down to 0% the last half lap). Fastest times around 11:40.