Cancajanag is located within the municipal boundary of Dagami in the province of Leyte, on the island of Leyte, Region VIII, of the Philippines.

It is located within the baranggays of Bouglayor and San Agustin.

Cancajanag is classified by Philippine volcanologists as a potentially active dome complex volcano[2] with an elevation of 900 meters and a base diameter of 4 kilometres.

[3] It has a hot spring, Mainit Spring (Anahawan) with a temperature range of 63.4 °C to 63.9 °C, Adjacent Volcanic Edifices are Alto Peak which is 6.2 cadastral km NNW of Cancajanag, and Lobi which is 6.6 cadastral km SSE of Cancajanag.

Predominant rock type is andesite.