Lepanto-Bonto in 1918
|Mid 20th century
Lepanto-Bontoc was a sub-province of Mountain Province from the 20th century. The old parts of Lepanto-Bontoc were the municipalities of: Besao, Sagada, Barlig, Sadanga, and the capital of Mountain Province, Bontoc.
Lepanto - Bontoc was created as a sub-province of Mountain Province in the first 1910s. The capital was the present - Barangay Bontoc Poblacion. Lepanto-Bontoc was a wealthy province than Mountain Province. The province was closed in the mid-20th century.
- "mountain province municipalities map philippines - Google Search". www.google.com.ph. Retrieved 2016-09-22.