Rivera was founded in the late 1800s by Jewish immigrants from Russia and Poland. Volga Germans began settling there after 1900, relocating from other areas of Argentina.

The twenty families who established the colony of Nievas came from the Volga German colony of Hölzel. They arrived in Argentina in February 1878 aboard the SS Hohenstadt along with those who later founded the colony of San Miguel. After spending 7 years in Colonia Hinojo, they purchased land from Johann (Juan) Rickert and founded the colony of Nievas in 1885 in the Olavarría Partido (Section) of Buenos Aires Province. Originally built at the top of the hill, the colonists moved the settlement to the banks of the Arroyo Nievas, after which the colony had been named.

Colonia Monte la Plata was founded in Vallarino Partido (Section) in Buenos Aires Province on 9 March 1906.

Volga Germans settled in Monte la Plata.

On the 5th of January 1878, the colony of Santa María de Hinojo was founded in the Partido de Olavarría of Buenos Aires Province, about 35 kilometers south of Azul. This was the first Volga German settlement in Argentina. The first settlement group consisted of eight families and three unmarried individuals who arrived by train from the port in Buenos Aires. The colony was originally called Kamenka after the colony from which the founding settlers came. However, it was officially Santa María de Hinojo which was simplified to Hinojo over time. Hinojo translates to "fennel" in English.

Gascón is the name often used to refer to a cluster of Volga German colonies located about 15 kilometers from San Miguel Arcangel, near the railway station of Esteban Agustín Gascón from which it got its name.

Esteban Agustín Gascón was officially founded on 15 April 1907 when a railway station was built on land owned by Esteban Louge. It was named after Argentinean politician Esteban Agustín Gascón who was from Tucumán.

On 18 April 1901, a train station was established at this location along the line between Aparicio and Coronel Dorrego and given the name "El Perdido" (Lost Station).

There were already Volga German families living in the area as the photo to the right was taken in 1900.

The village of Espartillar was founded on 8 November 1910. Its first inhabitants were Spanish and French. They were joined shortly thereafter by the Volga Germans who are now the majority group in Espartillar.

Darregueira was founded in Buenos Aires Province in 1906. It is named in honor of José Darregueira (1770-1817), a signatory to Argentina's Act of Independence in 1816.

The Partido (Department) of Coronel Suárez was created on 10 July 1882 during the governorship of Dr. Dardo Rocha.

On 24 September 1885, 50 Volga German families arrived at the port in Buenos Aires. Their destination was Colonia Hinojo, where most of them had relatives who had settled there earlier. Land in that area was scarce, and after 18 months, Father Luis Servet organized a group of settlers who negotiated an agreement with Edward Casey to settle in the vicinity of the Suace Corto (now known as Coronel Suárez) railway station.

A train station was established at Cascada on 2 November 1910, inaugurating the first settlement of the area.

Although there were once about 1,400 people living in Cascada, today it is mostly a ghost town. The church and school are still active, but most other buildings in this rural community are abandoned.