[1][3][4] Kadeya Creek's watershed covers 59 km2 (23 sq mi) and its estimated mean annual discharge is 1.22 m3/s (43 cu ft/s).

[2] Kadeya Creek is in Mount Edziza Provincial Park which lies within the traditional territory of the Tahltan people.

[5] From its source near Triangle Dome on the western slope of Mount Edziza, Kadeya Creek flows about 6 km (3.7 mi) northwest to the head of a vegetated canyon.

This strata, consisting of interbedded siltstone, sandstone, shale and conglomerate, is overlain by basal lavas of the Mount Edziza volcanic complex.

[7] In 1956, one of Canadian volcanologist Jack Souther's assistants got lost by mistakenly following the wrong tributary of Kadeya Creek.