For Sale: 5th Wheels / Grand Rapids, Mi Description: The Keystone Montana 3790rd Is A Top Selling 5th Wheel With An Innovative Floor Plan. This Montana Features A Beautiful Rear Den, Equipped With Two Tri-fold Sofas, Theater Seating, An Entertainment Center And A Fireplace. The Kitchen Has An Island For Added Counterspace, A Huge Pantry And Hutch And Free-standing Table And Chairs.additional Features On This 2015 Montana 3790 Rd: Residential Living PackageMontana 4 Seasons Living Packagecorrect Track 6 Point Hydraulic Auto Leveling Systemfireplace2nd A/cking Bedrvia Seal Interior Color: Night Fall