Kearney and Hazard

With 27 thousand inhabitants, Kearney ("car-knee") is the largest city Dee and Cal have encountered since leaving Hutchinson (40k), and probably the largest they will now see until well into Canada. The city is named for the nearby Fort Kearney on the Oregon Trail. The Great Platte River Road Archway Monument over I-80 that Dee and Cal wrote about (picture) is half way between Boston and San Francisco. Also of interest is that the name Kearney did not always have the first "e", but due to persistent misspellings, the current spelling stuck. Any guesses as to the population of Hazard? (The sign says 66.) Obviously friendly folks.