The Geographic Names Information System (GNIS) bụ ebe nchekwa data nke nwere aha na ebe ọmụma banyere ihe karịrị nde abụọ anụ ahụ na omenala atụmatụ dị na United States of America na ókèala ya. Ọ bụ ụdị nke gazetteer. GNIS mepụtara site na United States Geological Survey na imekọ ihe ọnụ na United States Board on Geographic Names (BGN) iji kwalite standardization nke atụmatụ aha. Ajụjụ: Gịnị bụ aha nke nchekwa data?
Usoro Ihe Ọmụma Banyere Aha Ala (GNIS)