The lake and its swampy, level basin are believed to be remnants of a much larger, ice-dammed prehistoric lake whose original drainage was toward the west.
As a result, the deep valleys advanced up their drainage basins toward the range divide, producing razorback ridges in the process.
In the present patient, we could observe an extra-tumoral streak drainage vein toward the right hepatic vein from a thick enhanced tumor with clear margin in DSA and an arterial phase of dynamic MDCT.
Some, again like Lake Chad, constitute the focus of centripetal drainage (drainage directed toward the centre), while others are linked to river systems.
The general slope and drainage pattern is toward the south and southwest, though an almost imperceptible groundswell in the northeast forms a watershed between the St . Lawrenceand Mississippi basins.
When the road traverses sloping ground, the side ditch can often only empty itself into a drainage channel or toward the lower part of the slope if the water grosses the road by means of a culvert.
He said he tried to escape with Colonel Qaddafi and other men, walking first to a farm, then to the main road, toward some drainage pipes.
I arrived one morning around daybreak, as a sandhill crane plucked its way toward a drainage ditch in the silvery darkness, and saw a single light on inside the house.
Later that day, returning home from running errands at Target and Home Depot, a groundhog waddled rapidly across our road toward the drainage pipe where he has lived since we moved here six years ago.
