Česma river at Narta near Bjelovar.
Country Croatia
Main source 114 m (374 ft)
River mouth Lonja-Trebež
84 m (276 ft)
45°34′31″N 16°28′16″E / 45.57528°N 16.47111°E / 45.57528; 16.47111 (Mouth of Česma)Coordinates: 45°34′31″N 16°28′16″E / 45.57528°N 16.47111°E / 45.57528; 16.47111 (Mouth of Česma)
Basin size 2,608 km2 (1,007 sq mi)
Physical characteristics
Length 124 km (77 mi)
  • Average rate:
    14.1 m3/s (500 cu ft/s)

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 km2 (1,007 sq mi).[1]

Created by merging streams Grđevica and Barna at 45°43′32″N 17°03′01″E / 45.72556°N 17.05028°E / 45.72556; 17.05028 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.

It has a small drop (small difference in altitude between the source and the mouth) which was causing frequent floods before the regulation of the riverbed. The area around the watercourse of Česma till a hundred years ago was subject of flooding, which is why it was swampy. After that, Česma river and its tributaries was channelized, embankments were built for flood protection, and the soil is dried to obtain arable land as well as the fight against malaria.

At the site of former wetlands now are fish ponds that supply water from streams that flows into the Česma river. These ponds are one of the last refuge of wading birds between the Drava and Sava rivers.

Along Česma river there are several major fish farming complexes. North of Česma fish pondribnjačastvo Dubrava, and along the southern coast fish ponds — Siščani, Blatnica and Narta. Both complexes are spread at about 5 kilometers along the course Česma river, and environment are similar. They are about 5 kilometers away to each other. The total area covered by commercial fish ponds is 1,346 ha (3,330 acres).[2]


  1. Ostroški, Ljiljana, ed. (December 2015). Statistički ljetopis Republike Hrvatske 2015 [Statistical Yearbook of the Republic of Croatia 2015] (PDF). Statistical Yearbook of the Republic of Croatia (in Croatian and English). 47. Zagreb: Croatian Bureau of Statistics. p. 49. ISSN 1333-3305. Retrieved 27 December 2015.
  2. Prostorni plan Bjelovarsko – bilogorske županije (Spatial plan of Bjelovar-Bilogora County) Archived July 21, 2011, at the Wayback Machine.
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