The length of the Suusamyr River is about 80 km. It begins at the watershed of the Ala-Bel Pass (3184 m), flows through the valley of the same name, and merges with the Western Karakol River to form the Kekemeren River.
The river is predominantly inhabited by the Scaly Osman (Diptychus maculatus Berg), which is a typical inhabitant of the high mountain sections of all rivers in the Tien Shan. The Scaly Osman is rarely found below 1500 m above sea level. Its diet mainly consists of filamentous algae and larvae of aquatic and aerial insects. The maximum size is 50 cm, and it can weigh up to 3 kg. Fishing for this species occurs in the valley section of the river at altitudes from 2000 to 2700 m, and in some cases, slightly lower, at the rapids and pools of the Kekemeren. Typically, these are deeper spots with relatively calm currents at river bends and behind rocks. Large individuals of the Scaly Osman are often caught in the rapids.
Spring fishing for the Scaly Osman is linked to the life cycle of aquatic insect larvae, primarily stoneflies, which at this time are the main food source and are ideal for bait. By observing the characteristics of the riverbed and water flow, as well as the presence and quantity of insects on the coastal rocks, one can determine the most likely spots for fish aggregation. The bite of the Osman in spring on stonefly larvae is particularly active. This allows even inexperienced, beginner anglers to experience thrilling moments and catch perhaps their first fish in their lives with relative ease. An angler used to fishing in still waters can feel new emotions from reeling in an Osman from a mountain stream.
