3 entries match your criteria. Historical Markers in Richland County, Montana Clickable Map of Richland County, Montana and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Richland County, MT (3) Dawson County, MT (21) McCone County, MT (6) Roosevelt County, MT (9) Wibaux County, MT (9) McKenzie County, ND (21) Williams County, ND (37) RichlandCounty(3) Richland County (3) DawsonCounty(21) Dawson County (21) McConeCounty(6) McCone County (6) RooseveltCounty(9) Roosevelt County (9) WibauxCounty(9) Wibaux County (9) McKenzieCountyNorth Dakota(21) McKenzie County (21) WilliamsCounty(37) Williams County (37) Sidney is the county seat for Richland CountyAdjacent to Richland County, Montana Dawson County (21) ► McCone County (6) ► Roosevelt County (9) ► Wibaux County (9) ► McKenzie County, North Dakota (21) ► Williams County, North Dakota (37) ► Touch name on this list to highlight map location.Touch blue arrow, or on map, to go there. GEOGRAPHIC SORTTitle SortMarker Number SortMarker Number Sort NMarker Number Sort TPublication Order Sort Publication Order Sort AErected Year SortMost Viewed SortMost Recent-Interest SortMost Recently Changed SortSEE FAQ #33 FOR DESCRIPTIONS 1 ► Montana, Richland County, Fairview — Mining Lignite Coal — 2 ► Montana, Richland County, Lambert — Burgess Garage — 3 ► Montana, Richland County, Sidney — The Elm Coulee Oil Field — Birthplace of the Bakken Oil Boom —