Aldan River
Amginsky is on flat terrain of the Prilenskoye Plateau (Lena Plateau). The main river in the district is the Amga, which flows from southwest to northwest through the middle of district. The Amga enters the Aldan River about 140 km northeast of Amginsky District, which in turn flows west to the Lena River. The Suola River also flows through the district. Amginsky District is about 100 km southeast of Yakutsk on the Lena.