The nearest inhabited places are Udarnik, Krest-Khaldzhay and Ary-Tolon of Tompo District to the east of the river's mouth.

In the upper section of its course the river flows across mountainous terrain, heading roughly southwards and flanking the eastern end of the Sordogin Range.

[3][4] After leaving the mountainous area the Baray turns slightly and flows in a roughly SW direction across a floodplain dotted with about 130 lakes.

Finally the Baray meets the right bank of the Aldan River in a vast swampy area where it makes a sharp westward bend, a little upstream from the mouth of the Tukulan and downstream of the Tompo, 240 km (150 mi) from the confluence of the Aldan with the Lena.

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