Systematic geomagnetic observations in Turkey started in 1947 at Istanbul-Kandilli (ISK) Observatory, which is located about 15 km out of the city center of Istanbul. Increasing population and demand for residential, commercial, and industrial zones caused the city to expand and with time ISK Observatory will be engulfed by the city. Consequently, geomagnetic observations are affected by artificial noise generated by the surrounding city. Despite the decrease in the data quality, ISK Observatory submits its data to World Data Centers on a daily basis (near-real-time). In order to improve the data quality, a new observatory was set up in Iznik, about 100 km away from Istanbul. Iznik is a site of great geophysical interest because a fault segment of the North Anatolian Fault Zone is nearby. Since 1986, 9 continuous geomagnetic total intensity stations have been running to observe the tectonomagnetic field in the region. All stations will greatly improve the geomagnetic field models and will facilitate the study of the geomagnetic field distribution and variation in Turkey.