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 ...

. 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 Macedo ...

, between

Sredna Gora Sredna Gora ( bg, Средна гора ) is a mountain range in central Bulgaria, situated south of and parallel to the Balkan Mountains and extending from the Iskar to the west and the elbow of Tundzha north of Yambol to the east. 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

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 and Strandzha 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, Rom ...

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 pa ...

. The climate is transitional continental. The highest temperature recorded in Bulgaria occurred here: it was at Sadovo in 1916. The precipitation is a year. Important rivers are the

Maritsa Maritsa or Maritza ( bg, Марица ), also known as Meriç ( tr, Meriç ) and Evros ( ell, Έβρος ), is a river that runs through the Balkans in Southeast Europe. With a length of ,Arda,

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 sourc ...

, Topolnitsa, and Vacha. Important cities include Plovdiv,

Burgas Burgas ( bg, Бургас, ), sometimes transliterated as ''Bourgas'', is the second largest city on the Bulgarian Black Sea Coast in the region of Northern Thrace and the fourth-largest in Bulgaria after Sofia, Plovdiv, and Varna, with a pop ...

, Stara Zagora,

Pazardzhik Pazardzhik ( bg, Пазарджик ) is a city situated along the banks of the Maritsa river, southern Bulgaria. It is the capital of Pazardzhik Province and centre for the homonymous Pazardzhik Municipality. The Tatars founded Pazardzhik i ...

Asenovgrad Asenovgrad ( bg, Асеновград ) is 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'' (; el, Στενήμαχος), it was ...

Haskovo Haskovo ( bg, Хасково ) is a city in the region of Northern Thrace in southern Bulgaria and the administrative centre of the Haskovo Province, not far from the borders with Greece and Turkey. According to Operative Program Regional Develo ...

Yambol Yambol ( bg, Ямбол ) is a town in Southeastern Bulgaria and administrative centre of Yambol Province. It lies on both banks of the Tundzha river in the historical region of Thrace. It is occasionally spelled ''Jambol''. Yambol is the ad ...

and

Sliven Sliven ( bg, Сливен ) is the eighth-largest city in Bulgaria and the administrative and industrial centre of Sliven Province and municipality in Northern Thrace. Sliven is famous for its heroic Haiduts who fought against the Ottoman Turk ...

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