Belqeys Castle (Persian: قلعه بلقیس) is a castle located in Esfarayen County in North Khorasan Province, Iran.

The fortress dates back to the Sasanian Empire.

[1][2] The remains of this ancient city are located 5 kilometers southwest of Esfarayen,[3] on the eastern edge of Joshaghan village, in the northeastern cultural area, the GPS code of the region: 53°57° to 07°58° longitude and 31°36° to 17°37° latitude - The height above sea level in Balqis Castle is 1.202 meters.

[4] Belqeys Castle has an area of over 51,000 square.

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