Pishin is the biggest district of Pashtun tribes in Balochistan. It connects Quetta, the capital city, to Afghanistan. It is located in the north west of Balochistan. Due to its high population and vast area, a new tehsil "Huramzai" has been established. The temperature is hot in summer, up to 40 °C, and in winter it is cold even below the freezing point. Famous rivers are River Surkhab and River Lora, which is further divided into different tributaries. Koa Khawaja I ran, Koa Toba Achakzai and Koa Toba Kakari are famous mountain regions in district.