1.   If the Ruritanian tributary was to flow into the country of Junior fiction, it could only be in a narrower channel.

2.   Its biggest tributaries are the East Fork of the Russian and Big Sulphur, Mark West, Maacama and Dry creeks.

3.   So we headed back up river, hoping that a tributary might be less formidable.

4.   On the road across the Grampian peninsula to Inverness, you cross the River Spey, along whose valley and tributaries are famous single-malt Scotch whisky distilleries.

5.   The cross-border tributary is vital to both, which funnel their water from dams to hydroelectric plants, providing power and potable water to millions of people.