1.
bay: part of a large body of water that extends into a shoreline
2.
cape: point of land surrounded by a body of water
3.
channel: deep, narrow part of water that connects to large parts of water (connects a river and an ocean); deep part of a river or waterway
4.
delta: land built up from soil carried downstream a river and deposited at its mouth
5.
divide: stretch of high land that separates river basins
6.
downstream: direction of which a river or stream flows from its source to its mouth
7.
elevation: height of land above sea level
8.
gulf: part of a large body of water that extends into a shoreline, larger than a bay
9.
harbor: a sheltered place along a shoreline where ships can anchor safely
10.
island: land area, smaller than a continent, completely surrounded by water
11.
isthmus: narrow stretch of land connecting two larger ones
12.
latitude: a distance north or south of the equator, measured in degrees
13.
longitude: a distance east or west of the Prime Meridian
14.
mouth: (of a river) place where stream or river flows into a larger body of water
15.
peninsula: body of land mostly surrounded by water
16.
plain: area of land, usually at low elevation
17.
source: (of a river) place where a river or stream begins, often in high lands
18.
strait: a narrow body of water connecting two larger bodies of water
19.
upstream: direction opposite the flow of a river; towards the source of a river or stream
20.
valley: area of low lands between hills or mountains
