Urff
Urff is a 20.2 km long river tributary of the river Schwalm in Waldeck- Frankenberg and Schwalm- Eder- Kreis, North Hesse( Germany).
It flows into the Schwalm near Niederurff.
Schwalm (Eder)
The Schwalm is a river in Hesse, Germany, right tributary of the Eder.
It rises on the north side of the Vogelsberg Mountains.
It flows north through Alsfeld, Schwalmstadt and Borken.
The Schwalm flows into the Eder near Wabern, east of Fritzlar, after a total length of 97 km.
The main tributaries are the Efze, the Gilsa, the Grenff and the Antrift.
Jesberg
Jesberg is a community in the Schwalm- Eder district in Hesse, Germany.
Willingshausen
Willingshausen is a community in the Schwalm- Eder district in Hesse, Germany.
Rhünda
The Rhünda, also called the Rhündabach, is a long, eastern tributary of the River Schwalm in the Schwalm- Eder- Kreis, North Hesse, Germany.
Neukirchen, Hesse
Neukirchen is a small town in the Schwalm- Eder district in Hesse, Germany.
Ollen
Ollen is a long river of Lower Saxony, Germany.
It discharges into the Hunte through an old branch of the Hunte near Berne.
Stellbergsee
Stellbergsee is a lake in Söhre, Landkreis Kassel and Schwalm- Eder- Kreis, Hesse, Germany.
At an elevation of 356 m, its surface area is 0.014 km².
Urff
Urff is a 20.2 km long river tributary of the river Schwalm in Waldeck- Frankenberg and Schwalm- Eder- Kreis, North Hesse( Germany).
It flows into the Schwalm near Niederurff.
Crocodile River (Limpopo)
The Crocodile River is a river in South Africa.
After its confluence with the Marico River, both rivers form the Limpopo River.

Question: Are both rivers, Ollen and Schwalm (Eder), located in the same country?
Answer: yes