The river Strothe rises on the Barnacken, near the B 1 federal road, and flows in a southwesterly direction alongside the B1 from Horn-Bad Meinberg in the northeast to Schlangen in the southwest and which continues as the Thune before discharging into the river Lippe.
The Hellweg Börde (German: Hellwegbörde) refers to the countryside and natural region on the southern edge of the Westphalian Lowland in the German state of North Rhine-Westphalia, which embraces the old Hellweg trading route cities and towns of Dortmund, Unna, Werl and Soest extending to Salzkotten and from there in an ever narrower strip to its northeastern tip at Schlangen on the edge of the town of Bad Lippspringe.
The Breslau had laid seventy mines off the mouth of the Danube, followed by another ten off Fidonisi Island, which to the Germans was then known as Schlangen Insel (Snake Island), off Sulina.