Watercourse channels

Usage examples of riverbeds.

We saw dry lakes and riverbeds, deep canyons, and towering mountains, and for a while it was hard for me to tell what it all meant.

These fossil riverbeds, like Nirgal Vallis, Warrego Valles, Protva Valles, Patana Valles, or Oltis Vallis, were narrow sinuous canyons, true riverine canyons rather than grabens or fossae.

As we approached, I could see the giant shield volcanoes along the crest of the Tharsis bulge, as well as runoff channels and ancient dry riverbeds that emptied into what looked like the basin of a long-gone sea in the northern hemisphere.

I say we start poking in riverbeds and the remnants of the nearest local lakes.

McGee drove while Rebecca surveyed the dry riverbeds with a pair of binoculars.

She gazed up at Mars, where she could see them now, ancient dusty traceries of the twin dusty riverbeds, Eos Chasma and Capri Chasma.

Watershed construction co-ops were still wandering around installing drainage, running water into highland creeks, reinforcing riverbeds, excavating quicksand, which in some cases revealed the ghost creekbeds of ancient watersheds below the fines.

The brown desert is irregularly dotted with the little marks of the thornbushes, the winding riverbeds are drawn up with crooked dark-green trails.

There were low thorn trees regularly spread over the plain, and long deep valleys with dry riverbeds of big flat stones, where you had to find a deer-path here and there to take you across.

They have been inspanned before daybreak, and have sweated up and down the long hills, and across dungas and riverbeds, through the burning hours of the day.

To the east, a jumble of mountains and chaos interrupted by ancient riverbeds flowing down to a beach.