Sredny Kachmash (; , Urta Qasmaş) is a rural locality (a village) in Nizhnekachmashevsky Selsoviet, Kaltasinsky District, Bashkortostan, Russia. The population was 27 as of 2010.Всероссийская перепись населения 2010 года. Численность населения по населённым пунктам Республики Башкортостан There is 1 street.

Geography Sredny Kachmash is located 15 km northwest of Kaltasy (the district's administrative centre) by road. Ilchibay is the nearest rural locality.Расстояние от Среднего Качмаша до Калтас

References