The Upper Thracian Plain ( bg, Горнотракийска низина, ''Gornotrakiyska nizina'') constitutes the northern part of the historical region of

Thrace Thrace (; el, Θράκη, Thráki; bg, Тракия, Trakiya; tr, Trakya) or Thrake is a geographical and historical region in Southeast Europe, now split among Bulgaria, Greece, and Turkey, which is bounded by the Balkan Mountains to t ...

. It is located in southern

Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedon ...

, between Sredna Gora mountains to the north and west, a secondary

mountain chain A mountain chain is a row of high mountain summits, a linear sequence of interconnected or related mountains,Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, p 87. . or a contiguous ridge of mountains within a larger m ...

parallel to the main

Balkan Mountains The Balkan mountain range (, , known locally also as Stara planina) is a mountain range in the eastern part of the Balkan Peninsula in Southeastern Europe. The range is conventionally taken to begin at the peak of Vrashka Chuka on the border betw ...

; the

Rhodopes The Rhodopes (; bg, Родопи, ; el, Ροδόπη, ''Rodopi''; tr, Rodoplar) are a mountain range in Southeastern Europe, and the largest by area in Bulgaria, with over 83% of its area in the southern part of the country and the remainder in ...

Sakar Sakar may refer to: * Şəkər, Goychay, Azerbaijan *Şəkər, Khojavend, Azerbaijan * Sakar, Nepal * Sakar, Mali Zvornik, a village in Serbia *Sakar, Turkmenistan *Sakar District, Turkmenistan * Sakar International, an electronics and accessories ...

and

Strandzha Strandzha ( bg, Странджа, also transliterated as ''Strandja'', ; tr, Istranca , or ) is a mountain massif in southeastern Bulgaria and the European part of Turkey. It is in the southeastern part of the Balkans between the plains of T ...

to the south; and the

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Roma ...

to the east. A fertile agricultural region, the Upper Thracian Plain proper has an area of and an average elevation of . The plain is part of

Northern Thrace Northern Thrace or North Thrace ( bg, Северна Тракия, as opposed to Western Thrace and East Thrace to the south; tr, Kuzey Trakya; el, Βόρεια Θράκη), also called Bulgarian Thrace, constitutes the northern and largest par ...

. The climate is transitional continental. The highest temperature recorded in Bulgaria occurred here: it was at

Sadovo Sadovo ( bg, Садово ) is a small town in Sadovo Municipality, Plovdiv Province, central Bulgaria, and the administrative center of Plovdiv. The population is 2,600. Geography The city is close to the Maritsa River, 18 kilometers east o ...

in 1916. The precipitation is a year. Important rivers are the Maritsa and its tributaries,

Arda Arda or ARDA may refer to: Places *Arda (Maritsa), a river in Bulgaria and Greece * Arda (Italy), a river in Italy *Arda (Douro), a river in Portugal * Arda, Bulgaria, a village in southern Bulgaria * Arda, County Fermanagh, a townland in County ...

Tundzha The Tundzha ( bg, Тунджа , tr, Tunca , el, Τόνζος ) is a river in Bulgaria and Turkey (known in antiquity as the Tonsus) and the most significant tributary of the Maritsa, emptying into it on Turkish territory near Edirne. The rive ...

Stryama The Stryama ( bg, Стряма , known in Antiquity as ''Syrmus'') is a river in southern Bulgaria, an important left tributary of the Maritsa. The river is 98.7 km long and has a drainage basin of 1,490 km2. The Stryama has its source ...

, Topolnitsa, and Vacha. Important cities include

Plovdiv Plovdiv ( bg, Пловдив, ), is the second-largest city in Bulgaria, standing on the banks of the Maritsa river in the historical region of Thrace. It has a population of 346,893 and 675,000 in the greater metropolitan area. Plovdiv is the c ...

, Burgas,

Stara Zagora Stara Zagora ( bg, Стара Загора, ) is the sixth-largest city in Bulgaria, and the administrative capital of the homonymous Stara Zagora Province. Name The name comes from the Slavic root ''star'' ("old") and the name of the medieva ...

, Pazardzhik,

Asenovgrad Asenovgrad ( bg, Асеновград ) is List of cities and towns in Bulgaria, a town in central southern Bulgaria, part of Plovdiv Province. It is the largest town in Bulgaria that is not a province center. Previously known as ''Stanimaka'' ( ...

, Haskovo, Yambol and Sliven.

References

* Geography of Thrace Plains of Bulgaria Landforms of Plovdiv Province Landforms of Haskovo Province Landforms of Burgas Province Landforms of Stara Zagora Province Landforms of Pazardzhik Province Landforms of Yambol Province Landforms of Sliven Province Northern Thrace {{bulgaria-geo-stub