[3] During the earlier times, there was a certain ethnic group headed by its chieftain named Datu Mandaganasa.

They found vast tracts of land located between the Iniawan and Pinalpalan Rivers and decided to make the place as their territorial domain.

The original inhabitants were eventually eased-out by the influx of incoming Dumagats (a general term used for Christians).

When Bukidnon was created as a separate province from Agusan del Norte, Kadingilan became a barrio of Maramag since 1945.

The topography of the municipality is characterized as rugged terrain with rolling, hilly and mountainous portions.

The Maridugao and Kidanggin Rivers at the southern portion separates Kadingilan from the municipality of Pangantucan and the province of Lanao del Sur.

Relatively low rainfall is due to rain shadow effect of the mountainous belt on the eastern side of Bukidnon.

Rainfall distribution is likely to vary in the southern part of the province because of the presence of adjoining hills and mountain ranges.

Only hundred fifty hectares are within the elevation of 500 meters and above and these are mostly found within the Payao and Matampay hills.

However, the next 10 years registered a population growth on only 1.48% due to disturbances of peace and order which caused out-migration.

The 1995 data also showed that four barangays - Baroy, Matampay, Pinamangguan and San Andres - experienced a decrease in population.

This manifested a slight increase of 8.16 percent over that of the 1990 count which was pegged at 135 persons per square kilometer.

It can also be observed that Manobo - a language spoken by the lumads - is used by nearly 5 percent of Kadingilan's population as of the 1995 census.

The organizational structure being followed by the municipality of Kadingilan is in adherence to the mandates as dictated by the Local Government Code of 1991.