Landslides occur throughout the entire United States, but are more prevalent in certain areas of Hawaii and Alaska and in the Rocky Mountains, Appalachian Mountains and the Pacific Coastal Ranges. Landslides are most lik... More » Science Earth Science

The most common natural causes of landslides include volcanic eruptions, seismic vibrations from earthquakes, erosion beneath banks or cliffs and increases in pore water pressure. Human causes include deforestation, alte... More »

While preventing all landslides is likely impossible, removing material that could slide down can prevent many of them. In some situations, its also possible to provide a buttress against material that could slide. More »

The tribal groups of the Pacific Northwest occupied areas as far south as California, east to the Rocky Mountains, north to Alaska, and west to the Pacific Ocean. There were dozens of different individual tribal groups, ... More »

The International Fuel Tax Agreement is an agreement among some Canadian provinces and all states in the United States, except Hawaii and Alaska that consolidates the reporting of motor fuel usage by carriers operating i... More » Business & Finance Taxes

Southwest Airlines provides service to locations throughout the United States, except Hawaii and Alaska. International destinations include Cancun, Mexico City, Puerto Vallarta and Cabo San Lucas in Mexico, as well as Ja... More »

The United States has 50 states that include Alabama, Arizona, Alaska, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, ... More »