Petersburg Borough topographic map

Denali (/dəˈnɑːli/ də-NAH-lee), federally designated as Mount McKinley, is the highest mountain peak in North America, with a summit elevation of 20,310 feet (6,190 m) above sea level. It is the tallest mountain in the world from base to peak on land, measuring 18,000 ft (5,500 m). With a topographic…

Average elevation: 5,546 m

Average elevation: 1,980 m

Average elevation: 34 m

Average elevation: 1,361 m

Average elevation: 167 m

Average elevation: 963 m

Average elevation: 643 m

Average elevation: 954 m

Average elevation: 597 m

Average elevation: 1,440 m

Average elevation: 1,798 m

Average elevation: 1,044 m

Average elevation: 260 m

Average elevation: 1,850 m

Average elevation: 1,842 m

Due to its isolated location, poor weather, and comparatively low absolute elevation by Alaskan standards, Mount Steller was not climbed until recently. The first ascent was in 1992.

Average elevation: 2,578 m

After a period of quiescence, an intense eruption took place at Okmok in 43 BCE. A rhyodacitic eruption column rose over the volcano from a vent in its northern part. Pumice lapilli fell out from the eruption column. The fallout was emplaced in three distinct units, with a brief break between the first two…

Average elevation: 713 m

Average elevation: 1,909 m

Average elevation: 997 m

Average elevation: 1,312 m

Average elevation: 952 m

Average elevation: 1,496 m

Average elevation: 1,095 m

Average elevation: 1,819 m

Average elevation: 1,691 m

Average elevation: 81 m

Average elevation: 209 m

Average elevation: 5,076 m

Average elevation: 2,848 m

Modern Mount Wrangell, built upon the remnants of a mid-Pleistocene volcano, has an eruptive history spanning from 750,000 years ago to minor phreatic eruptions in 1884. The shield volcano features an ice-filled caldera 2.5 by 3.7 miles (4 by 6 km) in diameter at the top of Wrangell's broad summit. The caldera…

Average elevation: 4,013 m

Holocene eruptive activity from Iliamna is little known, but radiocarbon dating seems to indicate at least a few eruptions, all before the European settlement of Alaska. Prehistoric eruptions have been dated to 5050 and 2050 BCE (VEI-4), 450 BCE and 1650. Historically observed eruptions took place in 1867…

Average elevation: 2,360 m

Mount Fairweather (or Tsalxaan in the Tlingit language) is a mountain located 20 km (12 mi) east of the Pacific Ocean on the Canada–United States border. With an elevation of 4,653 metres (15,266 ft), it is the tallest mountain in British Columbia and the seventh-tallest mountain in both Alaska and the…

Average elevation: 3,845 m

Average elevation: 4,106 m

Mount Blackburn is a large, dramatic peak, with great local relief and independence from higher peaks. Its west face drops over 11,000 ft (3,350 m) to the Kuskulana Glacier in less than 4 horizontal miles (6.4 km). Its other faces drop 8,000–10,000 ft (2,440–3,050 m), all in less than 8 miles (13 km). The…

Average elevation: 4,530 m

Mount Sanford was first climbed on July 21, 1938 by noted mountaineers Terris Moore and Bradford Washburn, via the still-standard North Ramp route up the Sheep Glacier. This route "offers little technical difficulty" and "is a glacier hike all the way to the summit" but is still a serious mountaineering…

Average elevation: 4,221 m

Average elevation: 4,404 m

Average elevation: 4,650 m

Average elevation: 2,814 m

Average elevation: 620 m

Average elevation: 208 m

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: 658 m

Average elevation: 64 m

Average elevation: 171 m

Average elevation: 42 m

Average elevation: 252 m

Willow has a subarctic climate with long and cold winters and mild summers. Whites Crossing is a weather station near Willow, situated at an elevation of 270 ft (82 m).

Average elevation: 69 m

Average elevation: 0 m

Average elevation: 27 m

Atigun Pass (/ˈætɪɡən/ AT-i-gən), elevation 4,739 feet (1,444 m), is a high mountain pass across the Brooks Range in Alaska, located at the head of the Dietrich River. It is where the Dalton Highway crosses the Continental Divide (at mile marker 244), and is the highest pass in Alaska that is maintained…

Average elevation: 1,530 m

Tussock tundra dominates the terrain surrounding the lake. Other plant communities in the area include wet sedge tundra, as well drier heath tundra found at higher elevations. Low growing shrubs are abundant, including birches and willows. Trees are not present. Since surveys began, there has been a 19 percent…

Average elevation: 731 m

Average elevation: 4 m

It is usually reached by driving to the Glen Alps trailhead and following a 1.5-mile (2.4-km) trail, with an elevation gain of 1,280 feet (390 m) from the parking lot to the plateau. Off the plateau loop is a difficult trail to the peak. Since it is the most accessible mountain to Anchorage, Flattop is a very…

Average elevation: 735 m

Average elevation: 337 m

Average elevation: 1,104 m

Average elevation: 2 m

Average elevation: 167 m

Average elevation: 34 m

Average elevation: 3,861 m

Average elevation: 90 m

Average elevation: 816 m

Average elevation: 247 m

Average elevation: 199 m

Average elevation: 830 m

Denali State Park is in sight of Denali, the highest mountain peak in North America, with a summit elevation of 20,310 feet above sea level. Denali rises 18,000 feet from base to peak, making it the largest mountain situated entirely above sea level. To the east, the state park borders the Susitna River, which…

Average elevation: 702 m

Average elevation: 119 m

Average elevation: 70 m

Average elevation: 862 m

Average elevation: 346 m

Average elevation: 117 m

Average elevation: 156 m

Average elevation: 160 m

Average elevation: 240 m

Average elevation: 240 m

Average elevation: 852 m

Average elevation: 329 m

Average elevation: 225 m

Average elevation: 2,115 m

Average elevation: 83 m

Average elevation: 99 m

Average elevation: 1,126 m

Average elevation: 1,619 m

Average elevation: 41 m

Average elevation: 1,901 m

Average elevation: 5 m

Average elevation: 50 m

Average elevation: 989 m

Average elevation: 19 m

Denali (/dəˈnɑːli/ də-NAH-lee), federally designated as Mount McKinley, is the highest mountain peak in North America, with a summit elevation of 20,310 feet (6,190 m) above sea level. It is the tallest mountain in the world from base to peak on land, measuring 18,000 ft (5,500 m). With a topographic…

Average elevation: 5,546 m

Average elevation: 287 m

Average elevation: 1,068 m

Shishaldin is located on Unimak Island, the easternmost of the Aleutian Islands. The nearest settlement to the volcano is False Pass (population ~100) at 45 km away. The view of Shishaldin from False Pass is obscured by the Round Top and Isanotski volcanoes, preventing direct observations of eruptions in many…

Average elevation: 2,134 m

Average elevation: 72 m

Average elevation: 1,278 m

Average elevation: 865 m

Average elevation: 996 m

Average elevation: 0 m

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: 658 m

Average elevation: 503 m

Average elevation: 27 m

Average elevation: 689 m