It's Dan Dubuque, a resident of Montana and a virtuoso on the Weissenborn lap slide guitar.  Mr. Dubuque has posted a collection of videos in various Montana settings playing impressive rock song covers.

We've messaged him and hope to learn of any connection to our city's namesake.

Rock on, Mr. Dubuque.

More details: https://www.rockcellarmagazine.com/slide-guitar-videos-covers-dan-dubuque-rage-against-the-machine-nirvana-tool-rolling-stones/