Rubuta ci gaba don wannan sakin layi - Bilär (Tatar: Биләр, ma'ana kamar: Babban Birni) - birni ne na tsakiyar zamanai a Volga Bulgaria kuma babban birninta na biyu kafin mamayar Mongol na Volga Bulgaria
Ka yi haƙuri. Tana cikin gefen hagu na Kogin Little Cheremshan a cikin Gundumar Alexeeyevsky na Tatarstan. Nisa zuwa Bilyarsk shine kilomita 50 da kilomita 150 zuwa Kazan.