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Named after the Costilla River, or Rio Costilla.
Etymology from Wiktionary, CC BY-SA 4.0.
Costilla County
Today it means: One of 64 counties in Colorado, United States. County seat: San Luis. Full definition →
Today it means: One of 64 counties in Colorado, United States. County seat: San Luis. Full definition →
Named after the Costilla River, or Rio Costilla.
Etymology from Wiktionary, CC BY-SA 4.0.