Who We Are

Gathering in Portland, Oregon since 1996 Ring of Moss has roots in both the Rinzai and Soto schools of Zen (Ch’an), as developed in the Diamond Sangha, with close ties to Ring of Bone Zendo on California’s rural San Juan Ridge. Meditation in community is central to our practice.

The Diamond Sangha tradition emphasizes koan practice. Koans present vivid examples of the Great Matter of life and death and serve as windows into awakening to the Way. We study koans from many sources, focusing on the Gateless Barrier, Blue Cliff Record, Record of Ease, and the Transmission of the Lamp.

Year-around instruction at Ring of Moss is available from Andrew Mason, authorized to teach by Nelson Foster in 2018. Andrew began Zen training with Robert Aitken in 1988.

Ring of Moss Zendo is located at 3525 SE Floss St., Milwaukie, Oregon.


I follow my impulsive feet wherever they might go
my body is a pine tree surrounded by the snow
sometimes I simply stand beside a flowing stream
sometimes I chase a drifting cloud past another peak


COVID - 19 Protocol

Ring of Moss is currently meeting in person. We require that in-person participants provide proof of vaccination, or a positive antigen test.

Event Calendar

Contact Ring of Moss Zendo

Upcoming Events

  • Monthly Zazenkai
    Sun, Aug 21
    Aug 21, 8:00 AM – 12:00 PM
    Milwaukie, 3525 SE Floss St, Milwaukie, OR 97222, USA
    A full morning of sitting with sutra service, dokusan, and dharma assembly.
  • Weekly Meditation
    Sun 7:30 - 8:30am, Wed 7:00 - 8:30 pm
    Ring of Moss Zendo
    Sun 7:30 - 8:30am, Wed 7:00 - 8:30 pm
    Ring of Moss Zendo, 3525 SE Floss St, Milwaukie, OR 97222, USA
    All are welcome