On2 gauge

On2 gauge is a narrow gauge model railroad scale that represents a prototype gauge of 2 feet (610 mm). In this scale, the models are typically built to a ratio of 1:48, which means that 1 inch on the model equates to 4 feet on the actual train. On2 gauge models are primarily used to simulate narrow gauge railroads, which were often found in mountainous regions or places where terrain made construction of standard gauge railroads impractical.