# Keystone Montana High Country 377FL

> Rear bedroom, front living, loft, bar seating

377FL is a fifth wheel floor plan by Montana High Country (Keystone).

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 41 ft 11 in |
| Sleeps | 10 |
| Slide-outs | 4 |
| MSRP | $108,608 |

## Model years

2026, 2025, 2024, 2023, 2022, 2021. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/keystone/montana-high-country/377fl?year={year}`

## Overview

What makes the 377FL stand out is that loft above the rear bedroom — accessed by real stairs, not a ladder — which adds serious versatility without eating into the main living space. Up front, the living area centers around Thomas Payne theater seating, a 5K BTU fireplace, and a 50" smart TV on a Televator, while the U-shaped kitchen with solid surface counters and a peninsula gives you actual room to cook. The driver-side entry door is a thoughtful touch that makes coming and going easier when you're parked in a typical pull-through or back-in site. Montana High Country has been a top-selling full-profile fifth wheel for over two decades, and features like the MORryde CRE3000 suspension, Ground Control 6-point auto-leveling, and an on-demand water heater show where the money went.

## We like

- Large rear loft with stairs above bedroom
- Driver side entry door

## Things to consider

- Kitchen area feels cramped

## Floor plan tags

loft, bar seating, front living, rear bedroom

## Inventory

54 units currently for sale priced $44,575 to $89,995: https://rvenvy.com/fifth-wheel-trailers/keystone/montana-high-country/377fl/inventory

Floor plan diagram: https://images.rvenvy.com/9fff9f7a09e1b781559b023db3bdd9d251db8e52e4cdea3360b81947c296edb0/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/keystone/montana-high-country/377fl