Sparks laughed; a pinched, self-deprecating sound that told her truth was flowing upstream.

For two days the Ohio River flowed upstream.

With their festive robes, they looked like a multicolored river that had decided to defy gravity by flowing upstream.

These dams had a wooden culvert equipped with a valve, allowing drainage but preventing water from flowing upstream.

It is commonly known as the river that flows upstream.

New tide gates have been installed in 2012 which will start changing the salinity of the water flowing upstream into the West River.

Water does not flow upstream, nor does time run backward.

Witnesses also said that for a time the Mississippi River flowed upstream.

The tidal bore - a wall or undulating wave of water moves upstream against water flowing downstream as shown in Figures 3 and 4.

At one point it flows upstream.