Ngardmau is located on the northwest coast of Babeldaob and includes the long drainage basins of the Diongradid and the Irur Rivers.

Forests cover the upper hillsides, but poor soil and past strip mining allow only scrub vegetation on many of the lower hills.

The modern village of Ngardmau lies along the north side of the Diongradid on the lower hillsides upstream from where the river enters the mangroves.

The hamlets span the low ridge east of Telong Hill between the river and the coast.

A bladed road along the north side of the river connects the villages, and traditional paths extend outward to Ngaraard, Ngiwal, Melekeok, and Ngeremlengui.

Interspersed with these kitchen gardens are stands of agroforest which include coconut, and betelnut, breadfruit, almond trees, and banana plants.

In and around many of the uninhabited villages are stands of coconut and betel nut palms, and occasionally patches of irregularly attended taro swamp gardens.

Except for occasional forays to hunt pigeon or harvest special plants, little active use occurs for most of the Ngardmau interior.

The lagoon is an important resource, providing many species of fish and shellfish, and it was probably intensively exploited in prehistoric times.

Today both "bul" punishment and government laws are both used in Ngardmau to keep the state clean and free of crime.

In Ngardmau there are five retail stores, one laundromat, two gas stations, one construction enterprise, and one auto repair shop.

Historic sites dating from the period of Japanese rule can be seen at several locations while driving on the mountainous natural resource of bauxite.

Other areas close two ports of Ngardmau are known to have farm growing clams and native sea lives.

[11] This article incorporates public domain material from Snyder, David; Adams, William Hampton; Butler, Brian M. (1997).