Unique CCW trailrun loop that tagged 2 new peaks for me in the Marin Headlands 50 Peak Challenge. The singletrack trail to Spirit Rock is in the best shape I've seen, it was totally overgrown last time I was there. Peak 449 ft is completely offtrail -- had to do some zigzagging to avoid dense bushes/poison oak to make it to the summit. Using the satellite map in peakery, I pieced together a route down to Tennessee Valley Trail all through grassy meadows with no bushwhacking. A fun adventure just a little offtrail.