[further explanation needed] In 1945, Filipino soldiers of the 6th, 10th, 101st, 102nd, 103rd, 107th and 110th Infantry Divisions of the Philippine Commonwealth Army and the 10th Infantry Regiment of the Philippine Constabulary together with the recognized Agusan guerrilla fighter units began the liberation of Northern Agusan from Japanese forces during World War II.

[further explanation needed] During the war, a unit of the joint Philippine-American defense force were located at Manot, Talacogon, in the interior of the Agusan Valley.

When Butuan is included for geographical purposes, the province's land area is 3,546.86 square kilometres (1,369.45 sq mi).

[7] The central portion of the province forms the lower basin of the third longest river in the country, the Agusan, its mouth located at Butuan Bay.

When the highly urbanized city of Butuan is included for geographical purposes, the province's population is 691,566 people, with a density of 195 inhabitants per square kilometre (510/sq mi).

In 2013, the Diocese of Butuan (Catholic-Hierarchy) reported that Roman Catholicism is the predominant religion of the province comprising roughly 71% of the population.

[citation needed] The remaining beliefs usually belong to other Christian denominations like Members Church of God International (MCGI)[13] as well as Islam.

Poverty incidence of Agusan del Norte Source: Philippine Statistics Authority[14][15][16][17][18][19][20] The economy of the province is dominantly agricultural, major crops of which include rice, corn, coconut, abaca, banana and mango.

Mount Hilong-hilong is the one of the tallest especially through the accessible area is located at Malvar Trail the center of Remedios T. Romualdez Municipality.

From the top of Prayer Mountain (Mount Pongkay), visitors can have a panoramic view of Cabadbaran which includes buildings, churches, rivers and the sea.