The fortress Ruyno-Ayazmoto is crossed by the railroad Silistra - Samuel. The north end crosses the dugout, which was partially excavated. It looks like a large rectangular house, as in the northwest corner a large semicircular stove is situated, that goes beyond the dugout. Its superstructure is built of stones.
The fortress Ruyno - Ayazmoto was built and operated together with Ruyno - Kartal Kale. Some ceramic fragments suggest it was built a little earlier, but were destroyed and burned together in the late X century. Traces of habitation in the end of X century - beginning of XI century in Ruyno-Ayazmoto are less tangible than these in Ruyno-Kartal Kale.
Location: Bulgaria, Silistra district, Municipality of Dulovo, Ruyno Village