From the record
“The Water Lily Shaft near Eureka, Utah was dug during 31 days in 1921 and won a "World Champion Shaft Sinking" competition. Company using Waugh Clipper Drills, and set a record of "427.5 feet of vertical, three-compartment shaft" being dug in a 31-day period.”
Wikipedia article Water Lily Shaft, CC BY-SA 4.0.
One of 183 National Register listings published here for Utah County · listed in 1979 · category: Site.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
