We have a responsibility to our community and our donors and work hard to ensure long-term sustainability of the organization.
We make our IRS Form 990 available for review, as required by law.
The Mammoth Site 2016-2017 IRS Form 990 click here to view the PDF.
The Mammoth Site 2018-2019 IRS Form 990 click here to view the PDF.
For more information regarding The Mammoth Site's Financials please call 605-745-6017.