Similar to Wasatch Polygamy
Wasatch Polygamy
Porter
Fargo Brewing Company Northbound Porter
Porter
Sierra Nevada Porter
Porter
Lone Peak Steep 'n Deep
Porter- Grand Teton Double Vision 2012
Porter 
Bell's Porter
Porter
Fargo Brewing Company Sodbuster
Porter
Deschutes Black Butte
Porter
Breckenridge Brewery Vanilla Porter
Porter
Summit Great Northern Porter
Porter
Comments:
"What does that even mean?"
Michael Smith - March 2013
"Nitrogen, instead of C02."
Alex Dixon - March 2013