Data update history
June 1, 2024
Updated personnel
Identified 5 new personnel
May 25, 2024
Posted financials
Added Form 990 for fiscal year 2023
November 25, 2023
Posted financials
Added Form 990 for fiscal year 2021
Nonprofit Types
Arts, culture, and humanities nonprofitsMuseumsCharities
Issues
Arts, cultural, and humanities
Characteristics
MembershipsState / local levelReceives government fundingEndowed supportTax deductible donationsAccepts online donations
General information
- Address
- PO Box 692
- Hot Springs, SD 57747
- County
- Fall River County, SD
- Website URL
- mammothsite.org/Â
- Phone
- (605) 745-6017
- Facebook page
- The-Mammoth-Site-of-Hot-Springs-South-DakotaÂ
- Twitter profile
- @mammothsiteÂ
IRS details
- EIN
- 46-0337824
- Fiscal year end
- October
- Taxreturn type
- Form 990
- Year formed
- 1975
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- A56: Natural History, Natural Science Museums
- NAICS code, primary
- 7121: Museums, Historical Sites, and Similar Institutions
- Parent/child status
- Independent
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