I logged 316 miles in 28 runs.
A LOT of miles were on my treadmill. First, I was doing 2 or 3 hill workouts a week (which I do on the mill regardless of weather). Second, the cold and winds (and icy roads) were too brutal; the treadmill might be boring but I prefer it in those conditions.
The hill phase is done and with 9 weeks to the race I'll focus more on speed (as well as more miles at mp). With the nicer weather I won't be back on the mill any time soon.