KeystoneMontana High Country

Montana High Country is Keystone's lighter luxury fifth wheel, positioned just below the full-size wide-body Montana and above the Cougar fifth wheels. Keystone, based in Goshen, Indiana and a subsidiary of Thor Industries, builds High Country on a standard-width chassis rather than the wide-body of the flagship Montana — a lighter, lower-profile coach aimed squarely at buyers whose truck cannot carry the heavier full-size line, cross-shopping Grand Design's Reflection and Solitude, Forest River's Cedar Creek and Sabre, Alliance's Avenue and Jayco's Pinnacle. These are residential layouts for full-timers and families towing a properly rated three-quarter-ton or one-ton truck, with the lightest plans reaching into heavy half-ton-plus territory.

The build is luxury-tier but tuned lighter than the flagship. Every High Country rides on 7,000-pound Dexter Gladiator axles with Nev-R-Adjust self-adjusting brakes, a MORryde CRE-3000 rubberized wet-bolt suspension and a MORryde rubber pin box, on 16-inch Rainier load-range-H tires, over a 10-inch I-beam z-frame on the smaller plans and a 12-inch I-beam on the larger. The two signatures that separate it from the full-size Montana are its Ground Control electric auto-leveling (four-point on the smaller plans, six-point on the larger) in place of the flagship's hydraulic Level-Up, and Coleman Mach air conditioning. The body is 2-inch composite-backed high-gloss laminated fiberglass under a walkable Alpha seamless TPO roof, behind a MaxTurn front cap with KeyShield automotive-grade paint, over a Four Seasons Living zero-degree-tested, fully enclosed and heated underbelly with forced hot air and electric tank heaters.

The systems and interior package are strong for the tier. A GE 18-cubic-foot residential refrigerator with a 2,000-watt inverter, a three-burner range, a residential microwave, a central vacuum, a 5,000-BTU fireplace and a king bed come standard, alongside a 15,000-BTU Coleman Mach Quiet Series air conditioner with a heat pump, a 35,000-BTU furnace, an on-demand tankless water heater and 50-amp service, backed by Keystone's three-year limited structural warranty. For 2026 the line runs to eleven floorplans; the six broadest-appeal layouts are profiled in depth below and five are catalogued from published specifications. The two-bath 381TB and 397FB and the four-slide 389BH bunkhouse headline the family end of the range.

Six broad-appeal 2026 High Country floorplans are profiled in full with verified specifications, spanning the line from the shortest rear-living couples’ coach to the two-bathroom family plan and the versatile bonus-room flagship: a rear-living plan, a bunkhouse, an elevated rear-den plan, a front-living plan, a two-full-bath plan and the mid-bonus-room 385BR.

Five further 2026 High Country floorplans are catalogued here from published specifications but not yet profiled in depth: the rear-den 311RD, the rear-kitchen 325RK, the high-payload rear-living 331RL, the four-slide 389BH bunkhouse and the two-full-bath 397FB. Each rides the same standard-width chassis and running gear as the profiled plans. Pin weight, cargo capacity and dimensions are verified against the RVUSA structured records; the 325RK and 397FB do not publish a dry weight at the source, so GVWR is not shown for them rather than estimated.

The High Country line sorts by where the living space goes, how many people sleep aboard and how much length and pin your truck can carry. For the shortest, most maneuverable couples’ coach, the 295RL puts a rear living area with a hide-a-bed sofa behind an island kitchen with a front king, keeping the whole rig to 34 feet on the line’s lightest 2,455-pound pin — and it carries the most cargo of any profiled plan, 3,608 pounds. The catalogued 311RD and 331RL step up in length as rear-den and rear-living couples’ coaches, the 331RL with the highest cargo capacity in the line at 4,363 pounds, and the catalogued 325RK is a rear-kitchen plan built around cooking.

For families, the plans open up. The 351BH is a compact triple-slide bunkhouse sleeping eight with a rear bunk room and a front master; the elevated-rear-den 373RD adds a separated second living room with theater seating and a fireplace; and the front-living 377FL raises a front great room on four slides, sleeping ten. At the top, the two-bath, two-bedroom 381TB carries a queen loft and the largest waste tanks in the profiled range, the mid-bonus-room 385BR adds a flexible office/guest room with a loft and an outdoor kitchen, and the catalogued four-slide 389BH bunkhouse and two-bath 397FB round out the family end. Note that the family plans carry the tightest cargo capacities — the 381TB’s 2,254 pounds is the lowest profiled — so watch payload closely.

Across all of them the build is consistent: 7,000-pound Dexter Gladiator axles, the MORryde CRE-3000 suspension, 16-inch load-range-H tires, Ground Control electric auto-leveling, the enclosed heated underbelly, the Alpha walkable TPO roof, the GE 18-cubic-foot refrigerator with inverter, the three-burner range, the central vacuum, the 15,000-BTU Coleman Mach air conditioner and the tankless water heater. The decision is layout, sleeping capacity, length, weight and pin — and, against the full-size Montana, whether your truck needs the lighter High Country chassis in the first place.