At the end of the 19th century , `` the valley of Walnut Creek was one continuous mining camp , known under different names , Jerome , Diamond , Mystic , Clarksdale , Rathbun and Darby '' ( later known as Darbyville ) .
At the end of the 19th century , `` the valley of Walnut Creek was one long mining camp , known under different names , `` Jerome '' , `` Diamond '' , `` Mystic '' , `` Clarksdale '' , `` Rathbun '' and `` Darby '' '' ( later known as `` Darbyville '' ) .