The Dolo mountain stream springs from the Mount Cusna's slopes (44°14′24.21″N 10°27′22.31″E), in the Reggio-Emilia province, in the Tuscany-Emilia Romagna Apennine Mountains.It is a natural boundary for the province of Reggio Emilia and the province of Modena.It is a tributary of the Secchia river.