 It was formerly an area of interest concerning coal mining.A portion of the Montour Trail passes through Robinson Township.According to the United States Census Bureau, the township has a total area of 21.2 square miles (55.0 km²), of which, 21.2 square miles (54.8 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.42%) is water.