Darwin was on the calendar for yesterday, which I planned to do in the evening but it didn’t happen (notwithstanding the morning’s pre-dawn 1hr trail escape). So, I did it today as an outdoor ride. It’s a 4x10’ but I did it as a 2x30’ by skipping past breaks and resetting the intervals as I looped around to repeat the main climb (opens with a .5mi of 8% on pavement and the rest on trail for an overall segment of 4.1mi averaging 5%).
Nearing the top of the main ascent.
I should have pointed the camera more to the right for more rolling hills and mountains… oh well. This is near the top of the main climb after turning around, which I did at the end of the second effort (I continued onward at the end of the first ascent to loop around).
Easy spin between ascents. The climb is on the ridge to the left.
Temp was 0C with a “feels like” of -3C. The main climb is a Strava segment and I dropped a full minute (even with coming to a near-complete stop due to horses coming down the trail), moving me up from 6th to 5th overall. The KOM is held by a local who is, according to Strava, 10-15 years younger and at least 30 lbs lighter than me 
I’ll have to drop nearly 7’ of my time (32:04 → 25:19) to get the KOM. (Second place is 30:02).