Arkansas River topographic map

The Mount St. Helens major eruption of May 18, 1980 remains the deadliest and most economically destructive volcanic event in U.S. history. Fifty-seven people were killed; 200 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche,…

Average elevation: 6,877 ft

Average elevation: 715 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

Uplift associated with mountain formation later moved these sediments thousands of feet upward and created the Colorado Plateau. The higher elevation has also resulted in greater precipitation in the Colorado River drainage area, but not enough to change the Grand Canyon area from being semi-arid. The uplift…

Average elevation: 3,356 ft

Average elevation: 3 ft

Average elevation: 39 ft

Average elevation: 3,271 ft

Average elevation: 3 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: 591 ft

Average elevation: 12,756 ft

According to the United States Census Bureau, the city has a total area of 497 square miles (1,290 km2), of which 249 square miles (640 km2) is land and 248 square miles (640 km2) (49.9%) is water. It is the largest city in Virginia by total area and third-largest city land area. The average elevation is 12…

Average elevation: 7 ft

Average elevation: 194 ft

Average elevation: 8,373 ft

At an elevation of 6,643 feet (2,025 m), it is the highest mountain in the Great Smoky Mountains National Park, the highest point in the state of Tennessee, and the highest point along the 2,192-mile (3,528 km) Appalachian Trail. It is also the third highest point in eastern mainland North America, after Mount…

Average elevation: 5,630 ft

Average elevation: 948 ft

Geismar is an unincorporated community in Ascension Parish, Louisiana, United States and is at the heart of Louisiana's chemical corridor. The community is part of the Baton Rouge metropolitan statistical area. Geismar is south of Prairieville and west of Gonzales. The community has Three schools, Dutchtown…

Average elevation: 23 ft

Average elevation: 778 ft

Average elevation: 1,414 ft

Boise (locally /ˈbɔɪsi/ BOY-see) is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. As of the 2020 census, there were 235,684 people residing in the city. On the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110…

Average elevation: 3,412 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

Navarre is located at 30°24′04″N 86°51′47″W / 30.401°N 86.863°W / 30.401; -86.863Coordinates: 30°24′04″N 86°51′47″W / 30.401°N 86.863°W / 30.401; -86.863. It is located within a portion of the Florida Panhandle observing the Central Time Zone. Elevation is at an average of 10 feet (3.0 m).

Average elevation: 13 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

With notable local relief, Mount Olympus ascends over 2,100 m (6,900 ft) from the 293 m (961 ft) elevation confluence of the Hoh River with Glacier Creek in only 8.8 km (5.5 mi). Mount Olympus has 2,386 m (7,828 ft) of prominence, ranking 5th in the state of Washington.

Average elevation: 6,345 ft

Port Charlotte is characterized by a predominantly flat and low-lying terrain, typical of Florida’s coastal landscape. The area features a network of waterways, including the Peace River and Charlotte Harbor, which provide ample opportunities for recreational activities like boating and fishing. Elevations…

Average elevation: 13 ft

Although the term "Blue Ridge" is sometimes applied exclusively to the eastern edge or front range of the Appalachian Mountains, the geological definition of the Blue Ridge province extends westward to the Ridge and Valley area, encompassing the Great Smoky Mountains, the Great Balsams, the Roans, the Blacks,…

Average elevation: 1,509 ft

Ponte Vedra Beach is characterized by its gently rolling terrain that is primarily flat and lies only about 15 feet above sea level. The landscape is predominantly shaped by coastal dunes and the proximity to the Atlantic Ocean, resulting in sandy beaches interspersed with vegetation typical of barrier island…

Average elevation: 10 ft

Average elevation: 1,286 ft

Average elevation: 1,184 ft

Average elevation: 13 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

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

Average elevation: 1,214 ft

Atlanta (/ætˈlæntə/ at-LAN-tə) is the capital and most populous city of the U.S. state of Georgia. It is the seat of Fulton County, the most populous county in Georgia. With a population of 498,715 living within the city limits, it is the eighth most populous city in the Southeast and 38th most populous…

Average elevation: 935 ft

Average elevation: 1,417 ft

Average elevation: 3 ft

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

Average elevation: 12,756 ft

Average elevation: 935 ft

Average elevation: 13 ft

Evergreen sits at an elevation of 7,220 feet (2,200 m) in the Rocky Mountains, 19 miles west of Denver, Colorado. Its addresses are oriented according to the Street_system_of_Denver.

Average elevation: 7,575 ft

Average elevation: 1,939 ft

Average elevation: 6,322 ft

Average elevation: 653 ft

Average elevation: 758 ft

Average elevation: 39 ft

Average elevation: 1,299 ft

Average elevation: 13 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: 837 ft

Average elevation: 2,096 ft

Average elevation: 4,383 ft

The nearly circular uninhabited island formed by Augustine Volcano is 12 km (7.5 mi) wide east–west, 10 km (6.2 mi) north-south; a nearly symmetrical central summit peaks at altitude 4,134 feet (1,260 m).

Average elevation: 2,159 ft

Average elevation: 7,310 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: 971 ft

Crested Butte is located in north-central Gunnison County on the west side of the valley of the Slate River, along Coal Creek. Colorado State Highway 135 runs south from Crested Butte 27 miles (43 km) to Gunnison, the county seat. According to the United States Census Bureau, the town of Crested Butte has a…

Average elevation: 9,180 ft

Timberline Lodge is a National Historic Landmark located on the southern flank of Mount Hood just below Palmer Glacier, with an elevation of about 6,000 ft (1,800 m).

Average elevation: 8,911 ft

Average elevation: 659 ft

Average elevation: 2,861 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

Mount Washington, also known as Agiocochook, is an ultra-prominent mountain in the state of New Hampshire. It is the highest peak in the Northeastern United States at 6,288.2 ft (1,916.6 m) and the most topographically prominent mountain east of the Mississippi River.

Average elevation: 5,144 ft

Average elevation: 13 ft

Average elevation: 151 ft

The historic Town of Fairplay is the Statutory Town that is the county seat and the most populous municipality of Park County, Colorado, United States. The town population was 724 at the 2020 United States Census. Fairplay is located in South Park at an elevation of 9,953 feet (3,034 m). The town is the…

Average elevation: 9,990 ft

The topography of the sea floor surrounding Crescent City has the effect of focusing tsunamis. According to researchers at Humboldt State University and the University of Southern California, the city experienced tsunami conditions 31 times between the years 1933 and 2008. Although many of these incidents were…

Average elevation: 102 ft

Average elevation: 322 ft

Average elevation: 528 ft

Average elevation: 2,339 ft

Average elevation: 1,398 ft

Average elevation: 9,022 ft

Average elevation: 8,996 ft

Average elevation: 7,395 ft

Average elevation: 9,472 ft

Average elevation: 413 ft

The amount of electricity generated by Hoover Dam has been decreasing along with the falling water level in Lake Mead due to the prolonged drought since year 2000 and high demand for the Colorado River's water. By 2014 its generating capacity was downrated by 23% to 1592 MW and was providing power only during…

Average elevation: 1,407 ft

The area is surrounded on the southwest by the Santa Rosa Mountains, by the San Jacinto Mountains to the west, the Little San Bernardino Mountains to the east and San Gorgonio Mountain to the north. These mountains peak at around 11,000 feet (3,400 m) and tend to average between 5,000 and 7,000 feet (1,500 and…

Average elevation: 236 ft

Highlands was founded in 1875 after its two founders, Samuel Truman Kelsey and Clinton Carter Hutchinson, drew lines from Chicago to Savannah and from New Orleans to New York City. They felt that the place where these lines met would eventually become a great trading center and commercial crossroads. Highlands…

Average elevation: 3,576 ft

Average elevation: 13 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

In January 2006, Ramona Valley was designated the country's 162nd American Viticultural Area (AVA) by the Alcohol and Tobacco Tax and Trade Bureau, which recognized the area for its distinctive microclimate, elevation, and soil attributes.

Average elevation: 1,539 ft

Average elevation: 1,073 ft

Average elevation: 364 ft

Average elevation: 348 ft

Average elevation: 1,125 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: 226 ft

Average elevation: 1,709 ft

The Skyline Drive area includes some of the highest points in the community, reaching an elevation of 70 feet (21 m) at one point.

Average elevation: 16 ft

Indianapolis is within the Tipton Till Plain, a flat to gently sloping terrain underlain by glacial deposits known as till. The lowest point in the city is about 650 feet (198 m) above mean sea level, with the highest natural elevation at about 900 feet (274 m) above sea level. Few hills or short ridges, known…

Average elevation: 791 ft

Average elevation: 2,159 ft

Average elevation: 591 ft

Average elevation: 9,026 ft

Average elevation: 472 ft

Average elevation: 8,091 ft

Average elevation: 79 ft

Average elevation: 7,100 ft

The commonly accepted definition of mountain calls for a mountain's summit to top 1,000 feet in elevation. In that sense Lost Mountain qualifies as a hill.

Average elevation: 545 ft