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Groton Open Space Association, Inc., is a member supportedall volunteer, 501(3)(c) organization.


Your Membership helps support GOSA’s mission:

  • advocacy of land, water, and wildlife in Southeastern CT
  • preserving the natural beauty of Southeastern CT.
  • acquisition of property for open space
  • stewardship of GOSA managed properties

Your Member benefits include:

  • Invitations to the Annual Meeting
  • Voting rights and a voice in GOSA’s future
  • Information about organized hikes and other special activities
  • Opportunities to join others who are making a difference

Suggested donations:


For Individuals


For Families


For Businesses

All donations to GOSA, in cash or in kind, are tax-deductible to the extent permissible by law.

How to Become a Member

There are many ways you can use to donate – online, by mail, or with other options.  Please chose the one most convenient to you.

Payment Method:

Regular mail

Print this form, fill in the information, then send with your check to:
PO Box 9187, Groton CT 06340

Credit or debit card
Fill out the form below to complete your donation. Credit card payments are processed via Square, which is a secure third-party payment processor that encrypts the data collected on our website for your protection. For more information: Square’s Secure Data Encryption.

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