Abra lies in the towering mountains in the western side of Cordillera in Northern Luzon.
Tadian is also an agricultural community.
Tadian is 39 kilometres (24 mi) from provincial capital Bontoc and 398 kilometres (247 mi) from Manila.
Abra is bounded in the West by the provinces of Ilocos Sur and Ilocos Norte, in the East by Kalinga, in the North by Apayao and in the South by Mt. Province.
Abra is a landlocked province and now, it has four entrances and exits: the Abra – Ilocos Sur Road, Abra - Kalinga Road, Abra – Ilocos Norte Road and Abra – Cervantes Road.
The Tinguians of Abra occupied almost all of the municipalities in the province, wherein there are 19 municipalities defined by their ancestral domain.
The Tingguians have settled since time immemorial in the province of Abra.
The Gubang tribe settled primarily in Malibcong;
The Mabaka tribe occupied some part of Malibcong and Lacub;
The Banao tribe settled some part of Malibcong and Daguioman.
The Binongan tribe settled in Lacub and Licuan-Baay;
The Adasen tribe settled in Lagayan, some barangays of Lagangilang, some barangays of San Juan, and Tineg;
The Agta settled in Barangay Marugnoy of Villaviciosa;
The Ammutan/Muyadan tribe settled in Barangays Catacdegan and Nuevo of Manabo;
The Balatok tribe occupied barangays Amti, Kilong-olaw and Danak of Boliney;
The Belwang tribe settled in Barangay Dao-angan of Boliney and Baklingayan of Tubo;
The Inlaud tribe settled in some barangays of: Lagangilang, Peñarrubia, Bucay, Langiden, San Isidro, San Quintin and Danglas, and barangay Lumaba, Villaviciosa;
In the recent decades, migration and settlements by the Ifugao people became a common phenomenon inside and outside the Ifugao province.
Lubuagan was once the provincial capital of Kalinga and was the seat of the first two secondary schools founded in 1927.
Pinukpuk was organized as a municipal district in 1908 and converted into a sixth-class municipality in 1963.
In 1995, UNESCO declared 5 IRT clusters as World Heritages recognizing them as “alivingculturallandscape” because of the impeccable blending of people and the environment, one that must be sustained and adopted.
Lubuagan was converted into a sixth-class regular municipality by Executive Order No. 42 on June 25, 1963, with 90% native Kalingas and the rest Ilocanos and Tagalogs.
Kalinga is a landlocked province in the northernmost section of the Cordillera Region, bounded by the provinces of Cagayan and Apayao in the north, Mt. Province in the south, and Abra in the West.
The greater sections of Cagayan and Isabela are found in the eastern part of Kalinga.
Balbalan became a regular municipality on June 25, 1963, with 99% Kalinga natives.
Pasil was created from barangays of the Balbalan and Lubuagan on June 18, 1966, by Operation of Republic Act No. 4741.
Pasil is only in Pasil where large volumes of Sulphur deposits and hotsprings are found, as well as an extinct volcano that continuously emits black smoke.
Rizal and Tabuk are the biggest rice producers, followed by the mountainous area and the rice terraces of Balbalan, Lubuagan, Pasil, Pinukpuk, Tinglayan, and Tanudan.
Pasil lies directly south of Balbalan, west of Upper Tabuk, north of Lubuagan, and east of the province of Abra.
Due to more economic opportunities in areas with more plains and rolling hills, population is shifting and increasing rapidly in Alfonso Lista and Lamut municipalities.
Balbalan is a municipality located in the northwestern portion of the province, bounded on the north by the Conner, Apayao, on the east by Pinukpuk, on the south by Pasil, and the west by the province of Abra.
Kalinga's lowlands are open grasslands suitable for pasture, while the highlands have extensive areas of tropical rainforest.
The early settlements of the Ifugao people were concentrated mostly in rice terraces areas in Kiangan, Hungduan, Banaue and Mayoyao with arguably the so called Old Kiyyangan as the earliest settlement.
The Maeng tribe settled in Luba, Tubo, some barangays of Villaviciosa, and barangays San Ramon and Ayyeng Manabo;
The Masadiit tribe settled in Sallapadan, Bucloc and Barangays of Bawiyan, and Dumagas of Boliney.
Apayao, derived from the Isnag dialect meaning 'river' or 'large body of water,' holds significant importance as a life-giving source for its people and neighboring provinces.
Located in the northernmost part of the CAR, Apayao spans a vast land area of 4,502.33 square kilometers or 1,738.36 square miles.
Bill No. 4600, sponsored by former Congressmen Alfredo G. Lamen and Luis Hora in 1962, failed to divide the province into the five sub-provinces that already existed.
Barlig is a 5th class municipality on the eastern side of Mountain Province with 11 barangays under three cluster areas: Barlig, Lias, and Kadaclan.
Abra and Apayao provinces were established in accordance with different legislation.