Membership

Membership runs from January 1st through December 31st.
New memberships received after August 31st will apply to the remainder of the current year and the next full year.


Your membership contribution supports our regular programs, including monthly presentations, field trips, and educational outreach.

If you would like to make an additional contribution in direct support of our general programs, please visit the Donate page as we currently cannot add a donation to the membership renewals.  If you would like to combine the two you can send a check to

ASCO at PO Box 8146 Bend, Oregon 97708-8146.

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