Ohio River 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: 85 ft

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: 62 ft

Average elevation: 0 ft

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: 358 ft

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: 4,800 ft

Average elevation: 187 ft

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: 837 ft

Average elevation: 715 ft

Tropical cyclones present special dangers and challenges to the entire Keys. Because no area of the islands is more than 20 feet (6.1 m) above sea level (and many are only a few feet elevation), and water surrounds the islands, nearly every neighborhood is subject to flooding as well as hurricane winds. In…

Average elevation: 0 ft

Average elevation: 3 ft

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: 213 ft

Average elevation: 3 ft

Average elevation: 4,649 ft

Average elevation: 12,756 ft

Average elevation: 935 ft

Average elevation: 20 ft

Average elevation: 581 ft

Mauna Kea (/ˌmaʊnə ˈkeɪə/; Hawaiian: [ˈmɐwnə ˈkɛjə]; abbreviation for Mauna a Wākea) is a dormant volcano on the island of Hawaiʻi. Its peak is 4,207.3 m (13,803 ft) above sea level, making it the highest point in the state of Hawaiʻi and second-highest peak of an island on Earth. The peak is…

Average elevation: 13,051 ft

Parrish features a predominantly flat terrain with an average elevation of approximately 36 feet above sea level. The area's landscape is characterized by gently rolling hills and low-lying regions, making it typical of the Central Florida topography. Surrounding Parrish are numerous wetlands and drainage…

Average elevation: 39 ft

Average elevation: 1,060 ft

Average elevation: 594 ft

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: 7 ft

Average elevation: 43 ft

Average elevation: 1,926 ft

Average elevation: 1,056 ft

Average elevation: 7,310 ft

The Santa Cruz Mountains are a region of great biological diversity, encompassing cool, moist coastal ecosystems as well as warm, dry chaparral. Much of the area in the Santa Cruz mountains is considered temperate rainforest. In valleys and moist ocean-facing slopes some of the southernmost coast redwoods…

Average elevation: 755 ft

Average elevation: 876 ft

Average elevation: 151 ft

Average elevation: 1,348 ft

Average elevation: 1,214 ft

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: 371 ft

Average elevation: 1,565 ft

Average elevation: 1,417 ft

Average elevation: 2,031 ft

Average elevation: 285 ft

Average elevation: 335 ft

Average elevation: 4,117 ft

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: 187 ft

Average elevation: 2,907 ft

Average elevation: 436 ft

Average elevation: 3 ft

Average elevation: 971 ft

Average elevation: 1,709 ft

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: 4,800 ft

Palm Harbor is characterized by its unique topography, which features a relatively rare hilly landscape for the region. Unlike much of the surrounding areas in Pinellas County, which are predominantly flat, Palm Harbor includes elevations that can reach up to about 75 feet above sea level. This elevation gives…

Average elevation: 30 ft

Average elevation: 322 ft

Average elevation: 545 ft

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Average elevation: 312 ft

Average elevation: 594 ft

Average elevation: 2,142 ft

Average elevation: 1,909 ft

Average elevation: 1,568 ft

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Average elevation: 72 ft

Average elevation: 1,089 ft

Average elevation: 358 ft

Average elevation: 272 ft

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Average elevation: 636 ft

Average elevation: 643 ft

Average elevation: 1,066 ft

Average elevation: 1,496 ft

Average elevation: 72 ft

Average elevation: 1,434 ft

Average elevation: 682 ft

Average elevation: 896 ft

Average elevation: 79 ft

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: 85 ft

The city is in the Salt River Valley, or the "Valley of the Sun," in the northern reaches of the Sonoran Desert. Scottsdale, 31 mi (50 km) long and 11.4 mi (18.3 km) wide at its widest point, shares boundaries with many other municipalities and entities. On the west, Scottsdale is bordered by Phoenix, Paradise…

Average elevation: 1,358 ft

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: 833 ft

Average elevation: 2,789 ft

Average elevation: 1,585 ft

Average elevation: 26 ft

Average elevation: 5,768 ft

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: 6,214 ft

Average elevation: 187 ft

The park is owned by the state of Georgia and is currently managed by Herschend Family Entertainment. At its summit, the elevation is 1,686 feet (514 m) above sea level and 825 feet (251 m) above the surrounding area. Stone Mountain is well known for not only its geology, but also the enormous rock relief on…

Average elevation: 981 ft

Average elevation: 3,698 ft

Average elevation: 8,428 ft

Average elevation: 689 ft

Average elevation: 2,493 ft

Average elevation: 7,100 ft

Average elevation: 4,967 ft

Average elevation: 1,562 ft

Average elevation: 1,014 ft

Average elevation: 354 ft

Average elevation: 600 ft

Average elevation: 72 ft

Average elevation: 820 ft

Average elevation: 1,086 ft

Average elevation: 33 ft

Average elevation: 1,339 ft

Average elevation: 1,040 ft

Average elevation: 1,634 ft

Average elevation: 968 ft