Miskolc is in the north-eastern part of the country , east from the BÃ 1\/4 kk mountains , in the valley of the river SajÃ and the streams HejÅ ` and Szinva . The city lies at the meeting point of different geographical regions â `` east from the BÃ 1\/4 kk mountains , in the valley of the river SajÃ and the streams HejÅ ` and Szinva .