[2] The Chechka Bistritsa flows in a relatively shallow and heavily forested valley in southwestern directed for about 3 km, then turns southeast until the Dikchan state forestry, and then again continues to the southwest.

It flows in that direction until the vicinity of the village of Dolno Dryanovo, where it turns south-southeast and enters the historical region of Chech, where the river valley widens.

There are no settlements along its course but several villages are perched over the Chechka Bistritsa, some of then less than a kilometer from the riverbed, including Pletena, Dolen, Dolno Dryanovo, Ablanitsa and Bogolin.

A 7.5 km stretch of the third class III-197 road Gotse Delchev–Dospat–Devin follows its valley between the villages of Dolno Dryanovo and Pletena.

[3] Part of the waters of the Chechka Bistritsa are diverted via eleven derivations and a tunnel under the Dabrash ridge to the upper course of the Dospat Reservoir, which forms the highest level of the Dospat–Vacha Hydropower Cascade (500.2 MW).