The road is located between Baler and Bongabon, Nueva Ecija. The province of Aurora covers the eastern portion of the Sierra Madre Mountains, hence it is generally mountainous. There are flat lands unevenly distributed throughout the province. Its coastline spans 328 kilometers in length. The municipality of Dingalan, in the south, has the most irregular topography.
Tropical cyclones are also a seasonal occurrence.
The average monthly rainfall is 273.9 millimeters. Rainfall is heaviest during the months of January, February, April, October, and November, while August is the driest month. The province experiences two main wind currents. From November to April, the trade wind generally reaches the province from an easterly direction. The wind then moves in a southwesterly direction for the rest of the year.