Iecava is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Latvia

Latvia

Latvia , officially the Republic of Latvia , is a country in the Baltic region of Northern Europe. It is bordered to the north by Estonia , to the south by Lithuania , to the east by the Russian Federation , to the southeast by Belarus and shares maritime borders to the west with Sweden...

. Iecava's source

Source (river or stream)

The source or headwaters of a river or stream is the place from which the water in the river or stream originates.-Definition:There is no universally agreed upon definition for determining a stream's source...

 is formed from several springs

Spring (hydrosphere)

A spring—also known as a rising or resurgence—is a component of the hydrosphere. Specifically, it is any natural situation where water flows to the surface of the earth from underground...

 near Daudzese village

Village

A village is a clustered human settlement or community, larger than a hamlet with the population ranging from a few hundred to a few thousand , Though often located in rural areas, the term urban village is also applied to certain urban neighbourhoods, such as the West Village in Manhattan, New...

, Jaunjelgava municipality

Jaunjelgava municipality

Jaunjelgava municipality is a municipality in Selonia, Latvia. The municipality was formed in 2009 by merging Sece parish, Sērene parish, Staburags parish, Sunākste parish and Jaunjelgava town with its countryside territory the administrative centre being Jaunjelgava....

. The river's mouth located 4 km below Jelgava

Jelgava

-Sports:The city's main football team, FK Jelgava, plays in the Latvian Higher League and won the 2009/2010 Latvian Football Cup.- Notable people :*August Johann Gottfried Bielenstein - linguist, folklorist, ethnographer...

 city

City

A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.For example, in the U.S...

 in Lielupe

Lielupe

The Lielupe is a river in central Latvia. Its length is 119 km . The surface area of its basin is 17,600 km²...

 river.

Iecava river is flowing through Taurkalne and Upmale low land where it has mainly wooded

Forest

A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending where you are in the world, what is considered a forest may vary significantly in size and have various classification according to how and what of the forest is composed...

 coast

Coast

A coastline or seashore is the area where land meets the sea or ocean. A precise line that can be called a coastline cannot be determined due to the dynamic nature of tides. The term "coastal zone" can be used instead, which is a spatial zone where interaction of the sea and land processes occurs...

s. Near Iecava

Iecava

Iecava is a village on the via Baltica in Iecava municipality, in the Zemgale region of southern Latvia. The village has a population of around 5,000....

 town

Town

A town is a human settlement larger than a village but smaller than a city. The size a settlement must be in order to be called a "town" varies considerably in different parts of the world, so that, for example, many American "small towns" seem to British people to be no more than villages, while...

 it crossing Zemgale low land and in Tīreļi low land it reaches Lielupe river.

The main water source (more than 50%) for Iecava river is water from melting snow

Snow

Snow is a form of precipitation within the Earth's atmosphere in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. Since snow is composed of small ice particles, it is a granular material. It has an open and therefore soft structure, unless packed by...

, but water from groundwater

Groundwater

Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock...

s is minimal (4-5%); because of that river usually overflows in springs

Spring (season)

Spring is one of the four temperate seasons, the transition period between winter and summer. Spring and "springtime" refer to the season, and broadly to ideas of rebirth, renewal and regrowth. The specific definition of the exact timing of "spring" varies according to local climate, cultures and...

 and has low water level in summer

Summer

Summer is the warmest of the four temperate seasons, between spring and autumn. At the summer solstice, the days are longest and the nights are shortest, with day-length decreasing as the season progresses after the solstice...

s.

Total number of Iecava's tributaries is ~400 (rivers, brooklets and ditches), the biggest of them are:

left bank's:
Kuma - 6 km
Ģirupe - 12 km
Smārde - 12 km
Ģedulis - 11 km
Īkstrums - 23 km:
right bank's:
Sudmaļupe - 6 km
Svētupe 6 km
Dzērvīte - 11 km
Briede - 10 km
Vēršupe - 15 km
Smakupe 26 km
Jāņupe - 20 km
Biržiņa - 16 km
Misa

Misa River

-References:...

- 108 km