You can certainly hear it in Derbyshire. When I drove buses you heard it every day. At the end of a shift a kindly inspector might say, "Get tha'sen down th' pub youth." (Go to the pub son.)
(The reflexive verb is alive and well there too). One of the funniest things I ever heard - although it was not funny to them - was two bus drivers having a flaming row. One yelled at the other,"Tha c'n get tha'sen fooked off!"