Česma
Česma is a river in central Croatia, the left tributary of the river Lonja-Trebež. It is 124 km (77 mi) long, and its catchment area is 2,608 km (1,007 sq mi).
Created by merging streams Grđevica and Barna at 45°43′32″N 17°03′01″E / 45.72556°N 17.05028°E near the village of Pavlovac in the municipality of Veliki Grđevac. Česma basin is fan-shaped and formed by a number of streams rising on the slopes of Bilogora and Moslavačka gora hills. Southern sides of Bilogora slightly goes downhill, rugged with numerous ravines and gullies, steeply and deeply cut in. On the sides appears numerous springs, that in the dry part of the year losing water.