Easy running 3:04:25 [2] 26.5 km (6:58 / km) +1200m 5:40 / km
Another run from Presidio to Mt. Tam, shorting out the extra distance I covered the first time around. Pretty sure this is the optimum trail way. Distance and climb are approximate.
Easy running 1:45:19 [2] 18.5 km (5:42 / km) +400m 5:08 / km
Back from Mt. Tam. Was about one light hour short for a full roundtrip. Made it back to Tennessee Valley, then down Tennessee Valley Road to the Marin City Junction. Got the #15 there with seconds to spare.
Distance and climb are approximate.