Covering 1,015% of Turkey's surface area, the province of Bolu is located in the Western Black Sea Region of the Black Sea Region with a surface area of 8,323 km². Approximately 18% of the provincial land is agricultural lands. Forest areas have a share of 2.55% within the forests of Turkey with a rate of 64%. The area covered by meadows and pastures is about 15%. The remaining 8% is non-agricultural land.
Average altitude is 1000 m, and the altitude of the central district is around 725 m. In terms of mathematical position, it is between 30 degrees 32 minutes - 32 degrees 36 minutes East longitude and 40 degrees 06 minutes - 41 degrees 01 minutes North latitudes.
Bolu is generally in the Western Black Sea and Black Sea climate types. Besides, Marmara and Central Anatolia climate types are also seen in the southwestern parts. According to the data of the last 52 years, the average daily sunshine duration is 5 hours and 49 minutes, and the annual precipitation is 536 mm. The annual average number of days with precipitation is 137 days.
Vegetation: The dominant vegetation in Bolu is forests. 55% of the provincial lands are covered with forests. Karadere, Seben and Aladağ Forests are the richest forests in our country. Dominant tree species are beech, hornbeam, linden, ash, oak, alder, elm, poplar, fir and Scotch pine. Transportation Bolu, which is located on the Ankara-Istanbul highway, can only be reached by road.