A
any ground whose surface forms an angle with the plane of the horizon
slope
the coast or land adjacent to the sea, a large lake, or river
shore
the altitudinal border above which trees do not grow
timberline
the highest point of a mountain
summit
a large, thick collection of trees; a forest
woods
a harbor of the sea, accommodating seafaring vessels
seaport
smaller streams or rivers flowing into a larger body of water
tributary
a large subterraneous arch through a hill
tunnel
the beginning of a river; the headwaters
river source
spongy land; low ground filled with water; soft, wet ground
swamp
a raised bank of earth with sloping sides
terrace
the place where a body of water meets the land
shoreline
the opening or entrance of a cave, pit, well, or den
mouth
a portion of land connected with a continent by a narrow neck or isthmus but nearly surrounded with water
peninsula
a small collection of water in a hollow place, supplied by a spring and discharging its surplus water by an outlet, smaller than a lake
pool
narrow ridge of fine particles of stone created by the current or tide
sandbar
a fast-moving river current, caused by a moderate descent
rapids
large area of flat land
plain
the bottom of a mountain
Piedmont
a small cape, headland, or promontory; a tract of land extending into the sea
point
an extensive open plain or meadow; a plain destitute of trees
savannah
a steep fall or descent of land, perpendicular or nearly so
precipice
a place where water is collected and kept for use when wanted
reservoir
an extensive tract of land, mostly level, destitute of trees, and covered with tall, coarse grass
praise
a large body of water nearly enclosed by land
sea