Not to engage in one-upsmanship, but one Sunday when I was rather bored, I actually made a
spreadsheet of all the FM signals I can receive here in St. Paul... including vital data such as wattage, HAAT, transmitter GPS coordinates, straight-line distance to the station, and FCC-estimated field strength in dBu at my location. When it came to distant signals, I mostly included the ones that would come in at least
detectably, and fairly often (maybe a third of the time), on my car radio... generally sensitive to around 30 dBu on frequencies that are "open" enough, i.e. free of adjacent-channel interference and {{blecch}} IBOC hash. (Experts in abnormal psychology are currently engaged in a similar scientific study of my pathetic social life. ;D)
I challenge you, Mr. Walker, to generate a similar opus for Williston and post it on your Website!
P.S. -- unfortunately, I haven't received many North Dakota signals down here. The only ones I usually get with any kind of regularity are a Godcaster out of Fargo on 97.9 (on GOOD tropo days, and mostly while visiting the suburbs), and KFYR (with regularity, although it improves in suburbia as one escapes the urban electrical noise and more-densely packed buildings.) Sadly, KEYZ is almost always out of the question -- there's a 10-kW sports station co-channel with it in St. Cloud, MN, directly between Williston and St. Paul, and at night I get either the Fan out of New York or adjacent-channel from 670 in Chicago.