Royal Border Bridge Royal Border Bridge Royal Border Bridge spans the River Tweed between Berwick-upon-Tweed and Tweedmouth in Northumberland, England. It is a Grade I listed railway viaduct built between 1847 and 1850, when it was opened by Queen Victoria. It was designed by Robert Stephenson for the York, Newcastle and Berwick Railway and remains in regular use as part of the East Coast Main Line. Despite its name, the bridge does not span the border between England and Scotland, which is approximately further north. The bridge is long. It is constructed in stone with brick soffits to the arches. It has 28
Guaporé River Guaporé River Guaporé River () is a river in western Brazil and northeastern Bolivia. Its Bolivian name is Río Iténez. It is long; of the river forms the border between Brazil and Bolivia. The Guaporé River is part of the Madeira River basin, which eventually empties into the Amazon River. The Guaporé River crosses the eastern part of the Beni savanna region. It forms the border of the Guaporé Biological Reserve, and is fed by rivers originating in the reserve, the São Miguel, Branco, São Simão, Massaco and Colorado. About 260 fish species are known from the Guaporé River basin,