1. A railroad track with a distance between rails (gauge) that is narrower than the standard gauge of 1.435 meters
The mountain region uses narrow gauge rails to navigate steep terrain more efficiently.
A região montanhosa utiliza trilhos de bitola estreita para navegar terrenos íngremes de forma mais eficiente.
2. Railway infrastructure designed for light-duty or specialized transportation in areas where standard gauge is impractical
The tourist train operates on narrow gauge track through the valley.
O trem turístico funciona em trilho de bitola estreita através do vale.