LOCATION ON THE MAP
• United States of America is located in the North
• The conterminous (excluding Alaska and Hawaii)
United States stretches across central North America
from the Atlantic Ocean on the east to the Pacific
Ocean on the west, and from Canada on the north to
Mexico and the Gulf of Mexico on the south.
• It consists of 50 states and a federal district.
• The United States is the world's third largest country in
population and in area.
3,717,813 sq mi
3,536,294 sq mi
181,519 sq mi
COASTLINES 12,380 miles
The conterminous United States may be divided into several
1. The New England states
(Maine, New Hampshire, Vermont, Massachusetts, Rhode
Island, and Connecticut),
2. The Middle Atlantic states
(New York, New Jersey, Pennsylvania,
Delaware, Maryland, Virginia, and West Virginia),
3. The Southeastern states
(North Carolina, South Carolina, Georgia, Florida,
Alabama, Mississippi, Louisiana, Arkansas, Tennessee,
4. the states of the Midwest
(Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa,
5. the Great Plains states
(North Dakota, South Dakota, Nebraska, and Kansas),
6. the Mountain states
(Montana, Idaho, Wyoming, Colorado, andUtah),
7. the Southwestern states
(Oklahoma, Texas, New Mexico, and Arizona), and
8. the states of the Far West
(Washington, Oregon, California, and Nevada).
Washington, D.C. (District of Columbia),
is the capital of the United States.
the Great Plains and the
• The primary topographical the USA
Topography Map of
features of continental Missouri River and
United States include the
andLakes in theplain systems
the coastal northern
Rocky Mountains in thein the central interior
along the eastern Atlantic
Midwest, the Appalachian
coast and southern Gulf
Mountains in the East
The Atlantic and Gulf Coastal Plain
, to Mexico.
• The plain was formed millions of years ago when deep
marine sediments were deposited on the ocean's floor.
Eventually these sediments emerged to become dry
• This flat coastal lowland varies in width from only a
few miles in New England to more than 500 miles (800
km) in the lower Mississippi River valley.
• Sandy beaches, bars, and islands border the coast;
swamps and marshes are often found short distances
• The inner margin of the Atlantic Coastal Plain is
marked in part by the fall line, where rivers descend
from the Piedmont Plateau, forming rapids and
waterfalls. Washington, D.C., Richmond, Virginia,
Columbia, South Carolina, and many other
southeastern cities are located on or near the fall line.
The Atlantic and Gulf Coastal Plain
The Appalachians Highlands
• The Appalachian
Highlands is a region
of mountains, valleys,
New England to
• The Appalachians are
one of the oldest
mountain systems in
the country. Through
the ages they have
been worn down
The Superior Uplands / Northwestern Midwest
Uplands are in
They are part of
and rise to a
of about 2,000
feet (600 m).
The Central Uplands
are in Missouri,
They include the
Ozark Plateau and
the Boston and the
The Ozarks rise to
about 2,500 feet (760
m); the Ouachitas, to
3,000 feet (900 m).
THE ROCKY MOUNTAINS
The Rocky Mountains
rise abruptly from
the Great Plains and
Mexico to Canada.
Compared with the
and are considerably
The Basin and Range Section
The Basin and
covering parts of
New Mexico, and
Texas, is a vast dry
area of low
mountains, most of
them running north
and south, and
East of the Coast Ranges
• East of the
and the high
East of the Coast Ranges
• Lofty volcanic peaks
dot the Cascades,
towering high above
• Mount Rainier, the
highest of these old
14,410 feet (4,392
m) above sea level.
East of the Coast Ranges
• The rugged Sierra Nevada
range includes Mount Whitney,
which rises 14,494 feet (4,418
m) and is the highest peak in
the United States outside of
Alaska (Mount McKinley, in the
Alaska Range, rises to 20,320
feet [6,194 m]).
In Death Valley, less than 100 miles
(160 km) southwest of Mount Whitney,
is the lowest point in the country—282
feet (86 m) below sea level
THE HIGHEST MOUNTAIN
Mc. Kinley Mountain
The main stem is "the primary
downstream segment of a river,
as contrasted to its tributaries".
The United States Geological
Survey (USGS) defines a mainstem segment by listing
coordinates for its two end
points, called the source and
The Yukon and Columbia rivers—
begin in Canada and flow into the
The Milk and Saint Lawrence rivers and the Red River of
the North—begin in the United States and flow into
Canada. Of these, only the Milk River crosses the
international border twice, leaving and then re-entering
the United States.
Two rivers, the Colorado and the Rio Grande,
begin in the United States and flow into or
form a border with Mexico.
In addition, the drainage basin of the Mississippi
and Missouri rivers extend into Canada, and the
basin of the Gila River extends into Mexico .
Rivers east of the divide drain into the Atlantic
Ocean, the Gulf of Mexico, or Hudson Bay.
THE LONGEST RIVER
The Longest River in the United
States as measured by the United
States Geology is Missouri River in
Montana. As stated above some
sources consider the Missouri
River a part of the Mississippi
River and include its length
combined with the Mississippi.
The USGS lists the Missouri River
as a separate river and therefore it
is the longest river in the United
States at 2,540 miles. The
Missouri River starts in the Rocky
Mountains in Montana and flows
into the Mississippi River near St.
There are 1219 lakes
listed in the United
States. The Great
Michigan, Erie, and
Ontario—are the largest
lakes of the United
States. Of the five, only
Lake Michigan lies
entirely within the
• In the dry regions of the West are many salt
lakes, of which the Great Salt Lake, in Utah, is
the largest. Smaller salt lakes include the
Salton Sea, in California, and Pyramid Lake, in
High in the western mountains are some of the nation's
most scenic lakes. Among them are Lake Tahoe, in
California and Nevada; Crater Lake, in Oregon; and
Yellowstone and Jackson lakes, in Wyoming.
• Here are United States Forest Service maps defining the 20 major forest
cover types in the United States and where they are most often located
based on frequency of occurrence. These forest land maps have been
constructed based on data "that indicate the species forming a plurality of
live-tree stocking". The maps delineate exactly where each timber cover
type most commonly occurs.
DESERT IN U.S.A
• There are four major desert categories in the
Southwest USA: Great Basin, Mojave,
Sonoran and Chihuahuan. The deserts are
classified based on the plant species that live
there. Desert classifications also take into
account the temperature of the deserts. The
Great Basin Desert is considered a "cold
desert" with plant life that is not subtropical,
but the other deserts are called "hot
deserts" and contain subtropical plant life.
WEATHER AND CLIMATE
• The difference between weather and climate
is a measure of time. Weather is what
conditions of the atmosphere are over a short
period of time, and climate is how the
atmosphere "behaves" over relatively long
periods of time.
• When we talk about climate change, we talk
about changes in long-term averages of daily
• An easy way to
that climate is
expect, like a
weather is what
you get, like a
hot day with
• Weather in The United States of America is
influenced by the high pressures zones. The
origin of a high pressure zone will determine
the type of weather to come. If a high
pressure zone moves in from the south, the
weather is usually warm and clear in the
summer. However, a high pressure zone
originating from the north will usually bring
cold weather in the winter months.
Climate, in short, is the description of the
long-term pattern of weather in a particular
•In the U.S., tornado season tends to
move northward from late winter to
• In Southern states, tornado season is
typically from March to May.
• In the Southern Plains, it lasts from
May to early June.
•On the Gulf Coast, tornadoes occur
most often during the spring.
•And in the Northern Plains, Northern
states and upper Midwest, peak
season is in June or July.
What causes tornadoes?
• The most common explanation for the
formation of tornadoes is the result of warm,
moist air meeting cooler, dry air, and creating
instability in the atmosphere. When the wind
changes direction and increases in speed and
height, it creates an invisible horizontal
spinning effect in the lower atmosphere.
Inside this updrift, rising air tilts the spinning
air from horizontal to vertical, forming
tornadoes that can be miles wide.
• Hurricane season runs
from June 1 to
November 30, with a
peak from mid-August
October. Some of the
Andrew in 1992,
Katrina in 2005. The
remnants of tropical
cyclones from the
Eastern Pacific also
the western United
moderate to heavy
• There was
of 1927, the Great
Flood of 1993,
by the 1982-1983
El Niño event in
A winter storm is an event in which the
varieties of precipitation are formed that
only occur at low temperatures, such
as snow or sleet, or a rainstorm where
ground temperatures are low enough to
allow ice to form (i.e. freezing rain).
In temperate continental climates, these
storms are not necessarily restricted to the
winter season, but may occur in the late
autumn and early spring as well. Very
rarely, they may form in summer, though it
would have to be an abnormally cold
summer, such as the summer of 1816 in
the Northeast United States of America.
• KLIK on My FOLDER named Oklahoma
• Natural resources: coal, copper, lead, molybdenum,
phosphates, rare earth elements, uranium, bauxite,
gold, iron, mercury, nickel, potash, silver, tungsten,
zinc, petroleum, natural gas, timber
• Note: the US has the world's largest coal reserves
with 491 billion short tons accounting for 27% of
the world's total
Mineral resources are available in
abundance and spread almost evenly in all
regions of North America.
It is a highly influential geographic factor for
the development of the United States as it is
This country has oil and gas deposits and
coal very rich.
Natural gas is found in Texas, Louisiana, and
• Other sources of minerals are metallic minerals.
United States also has a supply of main metallic
mineral ores. Iron ore deposits located around
the Great Lakes (Great Lakes). United States
produced more steel than iron ore, iron ore
therefore many are imported.
Regions which have potential of mineral
resources in the U.S
Fruits, vegetables, cotton,
and tobacco are
predominant in the warm,
subtropical zones of
northern Mexico and the
areas in this zone include
the Rio Grande Valley
(citrus fruits) in the U.S.
state of Texas and Mexico,
Californias Central Valley
(fruits and vegetables), the
Gulf Coastal Plain
(vegetables), and the
sandy valleys of the
Appalachians (cotton and
These areas benefit from
ample rain and warm air