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Okumaya devam et...
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| It spans a territory of 287 km<sup>2</sup>, of them 118 km<sup>2</sup> are the valley floor. It reaches a length of 34 km in direction west–east and a width of 5–6 km. The average altitude varies between 200 m and 250 m.<ref name="Geographic Dictionary of Bulgaria 488"/> The Tvarditsa Valley is inclined in southern direction. It is divided in two parts, the Tvarditsa field to the west with an altitude of 250 m and the Shivachevsko field to the east with an altitude of 200 m. | It spans a territory of 287 km<sup>2</sup>, of them 118 km<sup>2</sup> are the valley floor. It reaches a length of 34 km in direction west–east and a width of 5–6 km. The average altitude varies between 200 m and 250 m.<ref name="Geographic Dictionary of Bulgaria 488"/> The Tvarditsa Valley is inclined in southern direction. It is divided in two parts, the Tvarditsa field to the west with an altitude of 250 m and the Shivachevsko field to the east with an altitude of 200 m. |
| Along its northern slopes there are many [[alluvial fan]]s formed by the rivers streaming from the Balkan Mountains. The slopes are build up of [[granite]], [[Paleogene]] [[clay]]s, [[gneiss]], [[sandstone]] and [[Conglomerate (geology)|conglomerates]] and are subject to active erosion. The soils are mostly [[Alluvium|alluvial]]. | Along its northern slopes there are many [[alluvial fan]]s formed by the rivers streaming from the Balkan Mountains. The slopes are built up of [[granite]], [[Paleogene]] [[clay]]s, [[gneiss]], [[sandstone]] and [[Conglomerate (geology)|conglomerates]] and are subject to active erosion. The soils are mostly [[Alluvium|alluvial]]. |
| The valley is drained by several left tributaries of the [[Tundzha]] of the [[Aegean Sea]] basin — the Radova reka, the Tvardishka reka and the Byala reka.<ref name="Geographic Dictionary of Bulgaria 488"/> On the boundary with the Kazanlak Valley on the river Tundzha is located the [[Zhrebchevo Reservoir]]. | The valley is drained by several left tributaries of the [[Tundzha]] of the [[Aegean Sea]] basin — the Radova reka, the Tvardishka reka and the Byala reka.<ref name="Geographic Dictionary of Bulgaria 488"/> On the boundary with the Kazanlak Valley on the river Tundzha is located the [[Zhrebchevo Reservoir]]. |
Okumaya devam et...