1. Historical geography

5. Physical
features

6. LOCATION ON THE MAP
United States of America is located on the North American Continent
The contiguous (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.

7. LOCATION ON THE MAP
It consists of 50 states and a federal district (Washington D.C.)
The United States is the world's third largest country in population and in area.

8. AREA BORDERS CANADA 5,526 miles 8,893 km MEXICO 2,067 miles 3,327 km
TOTAL
3,717,813 sq mi
9,629,090 km2
LAND
3,536,294 sq mi
9,158,960 km2
WATER
181,519 sq mi
470,131 km²
LATITUDE
38°0' N
LONGITUDE
97°0'W
CANADA
5,526 miles
8,893 km
MEXICO
2,067 miles
3,327 km
COASTLINES
12,380 miles
19,920 km

9. POLITICAL GEOGRAPHY
The contiguous United States may be divided into several regions:
The Northeastern States (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut, New York, New Jersey, Pennsylvania) 
The Southeastern states
(North Carolina, South Carolina, Georgia, Florida, 
Alabama, Mississippi, Louisiana, Arkansas, Tennessee, and Kentucky, Virginia, and West Virginia, Delaware, Maryland)

10. POLITICAL GEOGRAPHY
4. the states of the Midwest (Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa, and Missouri, North Dakota, South Dakota, Nebraska, and Kansas),
7. the Southwestern states
(Oklahoma, Texas, New Mexico, and Arizona)
8. the states of the Far West
(Washington, Oregon, California, and Nevada, Montana, Idaho, Wyoming, Colorado, andUtah)

11. Washington, D.C. (District of Columbia), is the capital of the United States.

12. New York is its largest city.

13. The Largest Population

14. The Smallest Population
Cody City

15. LANDFORMS

16. The Atlantic and Gulf Coastal Plain
The Coastal Plain extends along the Atlantic and Gulf coasts from Cape Cod, Massachusetts, to Mexico.

17. The Appalachians Highlands
The Appalachian Highlands is a region of mountains, valleys, and plateaus extending southwestward from New England to Alabama.
The Appalachians are one of the oldest mountain systems in the country. Through the ages they have been worn down relatively low.

18. Central Uplands Ozark Ouachita
The Central Uplands are in Missouri, Arkansas, and Oklahoma.
The Ozarks rise to about 2,500 feet (760 m); the Ouachitas, to 3,000 feet (900 m).
Ozark
Ouachita

19. THE ROCKY MOUNTAINS
The Rocky Mountains rise abruptly from the Great Plains and extend northwesterly through 7 states from northern New Mexico to Canada. Compared with the Appalachians, the Rockies are geologically young and are considerably more rugged.

20. The Basin and Range Section
The Basin and Range section, covering parts of Utah, Nevada, California, Arizona, New Mexico, and Texas, is a vast dry area of low mountains, most of them running north and south, and broad basins.

21. East of the Coast Ranges
East of the Coast Ranges are the Cascade Range of Washington and Oregon, and the high Sierra Nevada of California.
CASCADE RANGE
SIERRA NEVADA

22. East of the Coast Ranges
Lofty volcanic peaks dot the Cascades, towering high above the other mountains.
Mount Rainier, the highest of these old volcanoes, rises 14,410 feet (4,392 m) above sea level.
Mt. Rainier

23. 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

24. THE HIGHEST MOUNTAIN
Mount McKinley
20,320 ft

25. The main stems of 38 rivers in the United States are at least 500 miles (800 km) long.

26. Two rivers, the Colorado and the Rio Grande, begin in the United States and flow into or form a border with Mexico. 

27. 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. Louis, Missouri.

28. 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 Nevada.

29. 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.
LAKE TAHOE
CRATER LAKE
YELOWSTONE LAKE
JACKSON LAKE

30. FORESTRY IN U.S.A

31. 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.

32. 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.
GREAT BASIN
CHIHUAHUAN,
ARKANSAS-NEW MEXICO
MOJAVE, CALIFORNIA
SONORAN, ARKANSAS

33. WEATHER
AND CLIMATE

34. 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 weather

35. An easy way to remember the difference is that climate is what you expect, like a very hot summer, and weather is what you get, like a hot day with pop-up thunderstorms. 

36. NATURAL DISASTERS

37. TORNADO SEASON
In the U.S., tornado season tends to move northward from late winter to mid-summer.
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.

38. 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.

39. HURRICANE SEASON
Hurricane season runs from June 1 to November 30, with a peak from mid-August through early October. Some of the more devastating hurricanes have included the Galveston Hurricane of 1900, Hurricane Andrew in 1992, and Hurricane Katrina in The remnants of tropical cyclones from the Eastern Pacific also occasionally impact the western United States, bringing moderate to heavy rainfall.
Hurricane Andrew

40. SNOWSTORMS
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.

41. NATURAL
RESOURCES
MINING – AGRICULTURE

42. MINERAL
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 today.
This country has oil and gas deposits along with coal deposits.

43. Fruits, vegetables, cotton, and tobacco are predominant in the warm, subtropical zones of northern Mexico and the United States.
Important agricultural 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 tobacco).
These areas benefit from ample rain and warm air currents.