An area of flat, low land
Plain
a body of salt water smaller than an ocean
sea
river
a large stream of water that flows across the land
volcano
mount shasta, mount lassen
A steep drop in a stream or river
waterfall
the highest kind of land
mountain
penninsula
land that is surrounded by water on three sides
desert
Mojave Desert, Great Basin, Death Valley
part of sea or ocean extending into the land, usually larger than a bay
gulf
a ridge of sand, rock, or coral near the surface of the ocean
reef
lake
a body of water with land on all sides
sea level
Pacific Ocean
the line on a mountain where trees cannot grow
timberline
stream or river that flows into a larger river
tributary
valley
low land between hills or mountains
Ocean
Pacific Ocean on the western coast
a triangle shaped area of land at the mouth of a river
delta
an area of high, mostly flat land
plateau
island
land surrounded by water on all sides
bay
SF Bay, Monterey Bay...