U.S. Geography Grab Bag by emilyaviva

Best-known for its role in the Second World War, what is the only part of the Hawaiian Islands that is politically not part of the State of Hawaii, instead forming an unincorporated, unorganized territory of the United States?

Point Roberts, an exclave of the U.S. that is essentially a suburb of Vancouver, B.C., was created due to what geographic parallel passing through the Fraser River Delta and cutting off a tiny piece of land?

The Northwest Angle is the only exclave of U.S. territory north of the that same parallel (besides the state of Alaska). Its creation is an artifact of nineteenth-century uncertainties in mapping what TWO bodies of water, which were instrumental in determining the boundary between the U.S. and Canada?

The Hoover Dam lies on the Colorado River and creates what artificial reservoir, the largest in the United States by water capacity (when full)?

The Twelve-Mile Circle is an approximately circular arc that forms most of the boundary between what TWO states?

Edgartown, Chilmark, Oak Bluffs, and Aquinnah are towns on what large island off the coast of Massachusetts, once a center of the whaling industry during the 19th century?

What state, other than Texas and Arkansas, is the closest (as the crow flies) to the city of Texarkana?

Mount Baker is the northernmost member of what volcanic mountain range that traverses 700 miles from British Columbia to California?

A bridge and two tunnels connect what U.S. city with Windsor, Ontario, at one of the few places a Canadian city lies directly south of an American one?

What notorious mountain pass, once used by the California Trail and the First Transcontinental Railroad, takes its name from an ill-fated group of pioneers who wintered there in 1846–47?

Beloved of crossword puzzle editors, what major university town is situated by the Skunk River, very near the geographical center of its state?

A nearly 24 mile-long causeway (really two parallel bridges), the longest continuous bridge over water in the world, crosses what lake north of New Orleans, Louisiana?

Both the westernmost and easternmost points in the United States by longitude are to be found in what volcanic island chain? (This unique geographical feature occurs because latitude 180°, the so-called "antimeridian", passes through this island chain.)

Despite its portrayal as an arctic wasteland in HBO's series The Young Pope, what Alaskan city, the southeasternmost major settlement in the state and a major cruise ship destination, is actually much more rainy than snowy, averaging 153 inches per year?

On what large island is the only tropical rain forest in the United States National Forest System, El Yunque National Forest, located?

If one takes the correct roads, one can travel from Missouri to New Mexico and only pass through one other state. Which state?