[1][6] It flows generally northwest and north for roughly 15 km (9.3 mi)[4] to join Kitsu Creek, a tributary of Mess Creek, which in turn is a tributary of the Stikine River.

Its watershed covers 46.6 km2 (18.0 sq mi) and is entirely in Mount Edziza Provincial Park.

From its source, Nagha Creek flows between Yagi Ridge,[10] to the south, and the Kitsu Plateau, to the north.

It then flows through conifer forests to join Kitsu Creek near Mess Lake.

[4] Nagha Creek's watershed is in the southern part of the Mount Edziza volcanic complex.