Guam topographic map

In June 1856, Fernando Wood appointed a "consulting board" of seven people, headed by author Washington Irving, to inspire public confidence in the proposed development. Wood hired military engineer Egbert Ludovicus Viele as the park's chief engineer, tasking him with a topographical survey of the site. The…

Average elevation: 26 m

Average elevation: 218 m

The San Francisco Bay Area is characterized by a diverse and dynamic topography shaped by geological processes over millions of years. This region features a combination of coastal plains, steep hills, and rugged mountains, all influenced by the tectonic activity associated with the nearby San Andreas Fault…

Average elevation: 113 m

Average elevation: 432 m

According to the United States Census Bureau, the CDP has a total area of 6.1 square miles (16 km2), of which 6.1 square miles (16 km2) is land and 0.04 square miles (0.10 km2) (0.49%) is water. The elevation is about 100 feet (30 m), combined with an inland location, creates more temperature variation in the…

Average elevation: 19 m

Average elevation: 1 m

Average elevation: 42 m

Average elevation: 275 m

Average elevation: 69 m

The Appalachian Mountains (French: Appalaches), often called the Appalachians, are a system of mountains in eastern to northeastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. They once reached elevations similar to those of the Alps and the Rocky…

Average elevation: 1,463 m

Average elevation: 3 m

Average elevation: 285 m

Baltimore is in north-central Maryland on the Patapsco River close to where it empties into the Chesapeake Bay. The city is also located on the fall line between the Piedmont Plateau and the Atlantic coastal plain, which divides Baltimore into "lower city" and "upper city". The city's elevation ranges from sea…

Average elevation: 65 m

Average elevation: 179 m

Average elevation: 381 m

Average elevation: 3 m

Average elevation: 24 m

El Dorado Hills (EDH), as defined by the 2010 census-designated place (CDP), is at the western border of El Dorado County, between the City of Folsom and the unincorporated community of Cameron Park. The northern limits of the CDP are Folsom Lake and the South Fork of the American River, where river rafters…

Average elevation: 254 m

Average elevation: 69 m

Average elevation: 3,815 m

Average elevation: 1 m

Agriculture and forestry are major industries. Agriculture includes dryland and irrigated farming and livestock grazing. Livestock are frequently moved between high-elevation summer pastures and low-elevation winter pastures, a practice known as transhumance.

Average elevation: 2,292 m

Average elevation: 22 m

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Average elevation: 1,417 m

Average elevation: 296 m

Average elevation: 240 m

Average elevation: 192 m

Average elevation: 444 m

Average elevation: 208 m

Average elevation: 273 m

Boston has an area of 89.63 sq mi (232.1 km2)—48.4 sq mi (125.4 km2) (54%) of land and41.2 sq mi (106.7 km2) (46%) of water. The city's official elevation, as measured at Logan International Airport, is 19 ft (5.8 m) above sea level. The highest point in Boston is Bellevue Hill at 330 ft (100 m) above sea…

Average elevation: 26 m

Mauna Loa is the largest subaerial and second largest overall volcano in the world (behind Tamu Massif), covering a land area of 5,271 km2 (2,035 sq mi) and spans a maximum width of 120 km (75 mi). Consisting of approximately 65,000 to 80,000 km3 (15,600 to 19,200 cu mi) of solid rock, it makes up more than…

Average elevation: 4,037 m

Average elevation: 468 m

Average elevation: 477 m

Average elevation: 83 m

The Black Hills is an isolated mountain range rising from the Great Plains of North America in western South Dakota and extending into Wyoming, United States. Black Elk Peak, which rises to 7,242 feet (2,207 m), is the range's highest summit. The name of the range in Lakota is Pahá Sápa. It encompasses the…

Average elevation: 1,894 m

Average elevation: 8 m

Average elevation: 176 m

Average elevation: 6 m

Average elevation: 411 m

Average elevation: 323 m

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Average elevation: 177 m

Average elevation: 57 m

Average elevation: 180 m

Average elevation: 22 m

Average elevation: 478 m

Average elevation: 22 m

Average elevation: 180 m

The core Tug Hill region encompasses 150,000 acres (610 km2) of unbroken, generally second-growth, northern hardwood forest, and is drained by a vast network of streams. Important rivers and streams whose headwaters are located within the Tug Hill region include the Mohawk River, Deer River, Salmon River, Mad…

Average elevation: 109 m

Average elevation: 587 m

Average elevation: 322 m

Average elevation: 2,077 m

Average elevation: 332 m

The Black Hills is an isolated mountain range rising from the Great Plains of North America in western South Dakota and extending into Wyoming, United States. Black Elk Peak, which rises to 7,242 feet (2,207 m), is the range's highest summit. The name of the range in Lakota is Pahá Sápa. It encompasses the…

Average elevation: 1,894 m

Average elevation: 267 m

Average elevation: 3,888 m

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Average elevation: 166 m

Average elevation: 174 m

Average elevation: 619 m

Average elevation: 2,164 m

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Average elevation: 8 m

Average elevation: 3,236 m

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Average elevation: 161 m

Average elevation: 108 m

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Average elevation: 16 m

Average elevation: 191 m

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Average elevation: 331 m

Average elevation: 653 m

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Average elevation: 1,160 m

Average elevation: 31 m

Average elevation: 582 m

Average elevation: 346 m

Average elevation: 952 m

Average elevation: 314 m

Anna Maria Island features a flat, sandy topography typical of a barrier island on the Gulf Coast. With an average elevation of around 15 feet above sea level, the terrain includes broad beaches, low dunes, and narrow stretches of sandy soil, making it highly vulnerable to storm surges and tidal flooding. The…

Average elevation: 2 m

Average elevation: 13 m

The confluence of the Scioto and Olentangy rivers is just north-west of Downtown Columbus. Several smaller tributaries course through the Columbus metropolitan area, including Alum Creek, Big Walnut Creek, and Darby Creek. Columbus is considered to have relatively flat topography thanks to a large glacier that…

Average elevation: 255 m

The climate in San Diego, like most of Southern California, often varies significantly over short geographical distances, resulting in microclimates. In San Diego, this is mostly because of the city's topography (the Bay, and the numerous hills, mountains, and canyons). Frequently, particularly during the "May…

Average elevation: 57 m

Average elevation: 370 m

Average elevation: 1,035 m

Average elevation: 712 m

Average elevation: 254 m

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Average elevation: 376 m

Average elevation: 133 m

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Average elevation: 407 m

Average elevation: 111 m