Abo Elementary School in Artesia, New Mexico was the first public school in the United States constructed entirely underground.
Notes on verification
Multiple authoritative sources including Britannica, National Park Service, and contemporary TIME magazine article from 1962 all independently corroborate the claim with consistent details about location, date, and purpose.
Sources
- Abo Elementary School (wikipedia)
- https://www.britannica.com/place/Abo-Elementary-School (corroboration)
- https://www.nps.gov/places/abo_school-nm.htm (corroboration)
- https://time.com/archive/6622742/education-underground-school/ (corroboration)
- https://www.edubloxtutor.com/unusual-amazing-schools/ (corroboration)
- https://virtualglobetrotting.com/map/abo-elementary-school-located-entirely-underground/view/google/ (corroboration)