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Give a Gift by Mail: Leave No Trace, PO Box 997, Boulder, CO 80306
Contact Us: 1-800-332-4100 or email dean@LNT.org
Leave No Trace Center for Outdoor Ethics is a 501(c)(3) non-profit organization (EIN# 84-1303335).
Your donation to Leave No Trace is tax deductible to the fullest extent of the law.
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