Tom is a river which is a tributary of the Ob river, located in Western Siberia. Between the mountain, the "Top Tom" and the Northern spurs of the ridge, called "Cardigan", is its source. The first kilometers along the bed of the Tom river carries its waters in the marshy valley.
The width of the floodplain of the river Tom – 3 km, and the length is 827 miles. The height from source to mouth is changed to 185 meters. The rate of flow of the Tom river reaches 0.33 meters per second, and in the shallows it increases to as much as 1.75 meters per second! In the second half of October, Tom cal the ice, and in April begins ice.
Tom has the demeanour of a mountain river. But her temperament calms the Kuznetsk basin, and the access to its banks is becoming more accessible. Due to its many natural properties and qualities, the water of the river Tom is placed in a single row in the unique fresh water streams. Its valuable properties are that it has no taste, color and smell, and the concentration of suspended matter emissions do not exceed 5-6 mg/L. that is why the river is a pond sanitary water of the first category.