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Boyolali is a regency (Indonesian: kabupaten) in the eastern part of Central Java province in Indonesia. Its capital is Boyolali.
The capital also named as Boyolali and lies 27 km to the west of Solo. The regency covers an area with approximately 1,015.10 km² Highest point: Mount Merbabu - 3,141 m
Beside Mount Merbabu, famous Mount Merapi also located in this regency.
Places of interest 
- Mount Merapi, the most active volcano in Indonesia. Can be reach through Selo district.
- Umbul Tlatar, natural spring pool located 7 km to the north of Boyolali city.
- Umbul Pengging, natural spring pool at Banyudono district.
- Kedung Ombo Dam, mainly used for irrigations purpose.
- Woodball Course Tlatar, mainly Woodball Arena insede Umbul Tlatar area.
Boyolali regency surrounded by other regencies: Klaten and Yogyakarta province in the south; Sukoharjo, Karanganyar and Sragen regencies and Solo city in the east; Salatiga city and Grobogan Regency in the north; and Magelang Regency in the west.
This regency consists of 19 districts as follows:
- Intercity buses
- Dokar, two-wheel carriage powered by horse
- Pedicab (Indonesian: Becak)
- Angkota, minibus car