Why We Chose This Black Stone Mountain Series 260KRS We selected this specific model because it offers an incredibly spacious, dual-slide layout designed for extended stays without towing an oversized trailer. Built right here in the Pacific Northwest on Outdoors RV's signature custom-engineered mountain chassis, the Black Stone 260KRS features a premium rear kitchen layout with massive counter space, a relaxing middle living room slide-out, and a private front bedroom complete with its own dedicated queen bed slide-out and a second exterior entry door. Combined with thermal pane windows, a fully enclosed heated underbelly, and factory-certified four-seasons block foam insulation, this rugged coach handles everything from freezing mountain passes to coastal rainstorms effortlessly.

Highlights of this Unit:

• Spacious Dual-Slide Living: Maximizes floor space with a deep living room dinette slide-out and a dedicated front bedroom queen bed slide-out.

• True Mountain Tough Build: Constructed with a heavy-duty, independently certified structural steel frame, rugged integrated A-frame, and off-road suspension designed for rough backcountry roads.

• Premium Chef's Kitchen: Features a brilliant rear-kitchen configuration with abundance of solid surface countertops, a deep farm sink, a kitchen pantry, and a sunken range with a glass front.

The Sumner RV Difference When you partner with Sumner RV, you are joining a 60-year legacy of integrity. As a family-run dealership hand-picked by the Nash family to carry on their tradition, we prioritize long-term customer relationships over transactional sales. To guarantee your absolute peace of mind, we invite new owners to spend their first night right here on our property along our year-round salmon creek—ensuring you are 100% comfortable with every feature before you head out to see Mt. Rainier.

Why We Chose This Black Stone Mountain Series 260KRS We selected this specific model because it offers an incredibly spacious, dual-slide layout designed for extended stays without towing an oversized trailer. Built right here in the Pacific Northwest on Outdoors RV's signature custom-engineered mountain chassis, the Black Stone 260KRS features a premium rear kitchen layout with massive counter space, a relaxing middle living room slide-out, and a private front bedroom complete with its own dedicated queen bed slide-out and a second exterior entry door. Combined with thermal pane windows, a fully enclosed heated underbelly, and factory-certified four-seasons block foam insulation, this rugged coach handles everything from freezing mountain passes to coastal rainstorms effortlessly.

Highlights of this Unit:

• Spacious Dual-Slide Living: Maximizes floor space with a deep living room dinette slide-out and a dedicated front bedroom queen bed slide-out.

• True Mountain Tough Build: Constructed with a heavy-duty, independently certified structural steel frame, rugged integrated A-frame, and off-road suspension designed for rough backcountry roads.

• Premium Chef's Kitchen: Features a brilliant rear-kitchen configuration with abundance of solid surface countertops, a deep farm sink, a kitchen pantry, and a sunken range with a glass front.

The Sumner RV Difference When you partner with Sumner RV, you are joining a 60-year legacy of integrity. As a family-run dealership hand-picked by the Nash family to carry on their tradition, we prioritize long-term customer relationships over transactional sales. To guarantee your absolute peace of mind, we invite new owners to spend their first night right here on our property along our year-round salmon creek—ensuring you are 100% comfortable with every feature before you head out to see Mt. Rainier.