1891 - World's First AC Electric Service Established Near Ophir, Colorado
Ames hydroelectric generating station - October 2017. Linecurrents photo.
Alternating Current (AC) electric power transmitted a significant distance over wires for the first time anywhere.
From new hydroelectric power generating station at Ames, Colorado to Gold King Mine near Ophir, about 2.5 miles from Ames.
Another AC hydroelectric generator at Bridal Veil Falls, built in 1895, electrified the nearby the Smuggler-Union Mine and the mining town of Telluride.
More info:
Xcel Energy - Ames Hydro (select Colorado map symbol)
Hydroworld.com - Ames Hydro history