Ancient Tunnels Or The Wild West? - Buried Cities at Kansas

There are many cities and towns across the nation and world that recognize what they call “underground cities“ and actually give tours of them. One of these is Ellinwood Kansas, and in this video this underground is explored and examined as to the true origins of the tunnels, walls and sidewalks that exist. Were these structures built with basements that were dug out and then constructed with lower walkways?....-Or is this actually evidence of a hidden cataclysm that is commonly termed “the mudflood“, in which these lower levels were originally the main levels at ground level? See first hand on this tour of the Ellinwood Underground.