SIGURD OLSON ENVIRONMENTAL INSTITUTE is a 501(c)(3) Charitable Organization. It is registered under the category Environment and subcategory Environmental Education and Outdoor Survival Programs. It has Unconditional Exemption and donations made to this organization are Deductible, as of Dec 2025. It is located in Washburn, WI.
Ruling Date
Dec 2025
Tax Status
501(c)(3)
Classification
Unconditional Exemption
Deductibility
Deductible
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