The Marin CNPS Facebook page reports
Loop hike on Mt. Tam and saw — no exaggeration — thousands of Calypso Orchids. Is this normal? They were ALL OVER the sides of Laurel Dell Fire Road near Potrero Meadow. I’m not kidding when I say thousands. I went from Rock Springs Parking Lot, on Simmons Trail to Barth’s Retreat, then Laurel Dell FR to Bernstein.
See photos at (5) Marin Native Plants