The whole area is situated in the Vistula river basin, on the Bug River. The latter flows along the south-eastern border; from the east to the west; it turns to the north-west later and, then, it flows across the middle part of the area in the northern direction forming arms to fall into the village of Lapajowka. The Kamianka river (or Sosnowiec) is one of the tributaries; it falls into the Bug River on the left bank-side. The Kamianka river flows on the small area along the border, then, it crosses the city centre flowing from the south to the north where it falls into the Bug River. There are city and suburban buildings in the Bug River valley. They are in the Kamianka river valley, too. The city takes up the valley space and there are brick houses in the market square but the wooden houses prevail; the suburbs on the left bank of the Kamianka river are called: "Belzkie", "Podzamcze" and "Lwowskie"; there is the Zabuzanskie suburb on the right river bank.