Mount Meydan (), is an extinct Volcano located in the provincial borders of Van and AÃÂrñ. It is located 7 kilometers northwest of Ercià  city. Inside the mountain is a crater and caldera.
Meydan Mountain is located at the zero point of the border of Patnos district of AÃÂrñ and Ercià  district of Van. Its highest point is 2778 meters with Gürgür Mountain. The base of the caldera is 2320 m. With the collection of surrounding waters in the caldera, the caldera lake was formed. The waters coming out of this lake form the Meydan Stream. Gürgürbaba consists of a relatively soft sloping and symmetrical round dome.