Topography on paper exercise
1. Take
one sheet of a lined or ruled sheet of paper.
2. Do
lay a second lined sheet of paper underneath and perpendicular to the top
sheet.
3. Draw
lines on the top sheet to make a series of squares:
Each square represents a section of a township.
4. Now
crumple the top sheet of paper into a ball; open the sheet and crumple tightly,
again.
5. Spread
the crumpled sheet out leaving some of the creases visible and prominent.
6. Now
pour sand or pepper above one of the creased areas of the crumpled paper.
7. Watch
where the grains fall and trace their paths with a pen.
8. With
some comparative thinking what you have traced is a patterned path of how a
flow of water or soil might move down a slope.
Watershed, literally, an area or
ridge of land that separates waters flowing to different rivers, basins, or
seas.
The
term used for designating a common area, or region drained by a single river,
river system, or other body of water.
Figuratively
this refers to an
event or period marking a turning point in a course of action or state of
affairs.