Stephen Mather Wilderness

Diobsud Creek Glacier is in North Cascades National Park in the U.S. state of Washington and is on the east slopes of Bacon Peak. Diobsud Creek Glacier has a shallow gradient, descending to the east from 7,000 to 6,000 ft (2,100 to 1,800 m) for a distance of nearly 1 mi (1.6 km). The ridge is an arête which separates Diobsud Creek Glacier from Green Lake Glacier to the north.

The Sulphide Cabin, also known as the Frisco Cabin, is a log cabin located along Bridge Creek Trail in North Cascades National Park, in the U.S. state of Washington. Constructed sometime in the 1920s by A.H. Peterson and his nephew, the cabin was a warm season residence used while Peterson worked his mining claim. The cabin was constructed plainly of rounded hewn logs, half notched at the corners. The cabin has two rooms and is 18 by 25 ft (5.5 by 7.6 m) with a door at each of the two shorter ends above which rises a gable roof which is wood shingled. Sulphide–Frisco Cabin was placed on the National Register of Historic Places in 1989 as it is the only remaining residence associated with mining in the Stehekin region of the park.

Thornton Lakes are located in North Cascades National Park, in the U. S. state of Washington. These paternoster lakes consist of three lakes located 1 to 1.75 mi (1.61 to 2.82 km) southeast of Mount Triumph. Thornton Lakes can be accessed on foot from a trailhead in Ross Lake National Recreation Area. The hike of 5.2 mi (8.4 km) includes a 2,400-foot (730 m) altitude gain and a 500-foot (150 m) descent to Lower Thornton Lake. Two other lakes lie above the first one, unofficially named Middle and Upper Thornton Lakes. A designated backcountry camping zone is located at Lower Thornton Lake.

West Depot Glacier is in North Cascades National Park in the U.S. state of Washington, on the north slopes of Mount Redoubt. Depot Glacier descends from 7,400 to 5,900 ft (2,300 to 1,800 m). Melt from the glacier feeds into Depot Creek which flows into Chilliwack Lake. A ridge separates West Depot Glacier from Depot Glacier to the east.

Custer Ridge (Mount Custer) (8,630 feet (2,630 m)) is a ridge in North Cascades National Park in the U.S. state of Washington. Located in the northern section of the park, Custer Ridge rises to the west of Silver Lake, 1.4 mi (2.3 km) north-northwest of Mount Spickard. The high point along Custer Ridge is a peak tentatively named Mount Custer, which lies near the southwestern end of the ridge. Custer Ridge extends beyond the Canada–US border.

Gilbert's Cabin is in North Cascades National Park, in the U.S. state of Washington. Constructed by a private citizen named Gilbert Landre, the cabin was intended as a private residence and is located at the site where Landre may have built an earlier cabin in 1888. The cabin is 18 by 25 ft (5.5 by 7.6 m) and was constructed from hand-hewn planks 17 in (430 mm) in thickness. Uniquely, the cabin walls are held together with dovetail joints at the corners. Gilbert's Cabin is the only building in North Cascades National Park constructed in such a manner. Gilbert's Cabin was placed on the National Register of Historic Places in 1989.

Marble Creek Glacier is in North Cascades National Park in the U.S. state of Washington. Marble Creek Glacier is at the headwaters of Marble Creek, a major tributary of the Cascade River. The glacier lies to the NNW of Dorado Needle and is also 1.20 mi (1.93 km) NNW of Eldorado Peak. To the east of Marble Creek Glacier lie the much larger Inspiration and McAllister Glaciers. Marble Creek Glacier descends from 8,000 to 7,000 ft (2,400 to 2,100 m).

Colonial Creek Falls is the tallest waterfall in the continental United States. In a horizontal traverse of more than 4,200 feet (1,300 m), it falls 2,568 feet (783 m) vertically in 13 distinct drops, with an average incline of 65 degrees.

The Picket Range is a small, extremely rugged subrange of the North Cascades in the northwestern part of the American state of Washington. It is entirely contained within North Cascades National Park. It is about 6 miles (9.7 km) long, running northwest–southeast, and lies north of the Skagit River, west of Ross Lake, and east of Mounts Baker and Shuksan. There are at least 21 peaks in the range over 7,500 ft (2,300 m) high.

The North Cascades are a section of the Cascade Range of western North America. They span the border between the Canadian province of British Columbia and the U.S. state of Washington and are officially named in the U.S. and Canada as the Cascade Mountains. The portion in Canada is known to Americans as the Canadian Cascades, a designation that also includes the mountains above the east bank of the Fraser Canyon as far north as the town of Lytton, at the confluence of the Thompson and Fraser Rivers.

Depot Glacier is in North Cascades National Park in the U.S. state of Washington, on the northeast slopes of Mount Redoubt. Depot Glacier descends from the 7,400 to 6,000 ft (2,300 to 1,800 m). Melt from the glacier feeds into Depot Creek which flows into Chilliwack Lake. The Redoubt Glacier lies to the east while the West Depot Glacier is separated from Depot Glacier by a ridge.

Horsemans Pack (8,156 feet (2,486 m)), and "The Horseman" (7,760 feet (2,370 m)), are summits located in North Cascades National Park in the U.S. state of Washington. Located in the south unit of the park, Horsemans Pack is .70 mi (1.13 km) west of Snowfield Peak and the Neve Glacier descends from the east slopes of the mountain. The first ascent of Horsemans Pack was made August 1, 1931, by William Degenhardt and Herbert Strandberg who also named this feature, whereas the first ascent of The Horseman was made July 17, 1982, by John Roper, Silas Wild, and Russ Kroeker. The Horseman's toponym has been officially adopted by the U.S. Board on Geographic Names, but Horsemans Pack has not.

Hidden Creek Glacier is in North Cascades National Park in the U.S. state of Washington and is on the northwest slope of Hagan Mountain. Retreat of this glacier from 1979 to 2005 exposed several rock outcroppings in the middle of the glacier. The terminus of Hidden Creek Glacier only retreated 50 m (160 ft) between 1979 and 2011, however the increase in area of exposed rock outcroppings in the middle of the glacier indicates rapid thinning.

McMillan Spire (8,004 feet (2,440 m)) is a mountain peak in the Picket Range in the U.S. state of Washington and within North Cascades National Park. The peak lies .75 mi (1.21 km) east of Mount Degenhardt, and 0.47 mi (0.76 km) east of Inspiration Peak. The subpeak known as East McMillan Spire (7,992 ft (2,436 m)) is .14 mi (0.23 km) east of McMillan Spire and they are collectively referred to as the McMillan Spires. The Terror Glacier lies to the west of the peak.

Neve Peak (7,509 feet (2,289 m)) is in North Cascades National Park in the U.S. state of Washington. Located in the south unit of the park, Neve Peak is .66 mi (1.06 km) west of Colonial Peak. The Neve Glacier is just south of Neve Peak while the Colonial Glacier descends from the north slopes of the mountain.

Ladder Creek Glacier is in North Cascades National Park in the U.S. state of Washington and is a northwest tongue of the larger Neve Glacier. Ladder Creek Glacier added 105 m (344 ft) between 1950 and 1979, but lost 190 m (620 ft) from 1979 to 2006. Ladder Creek Glacier descends from 7,800 to 6,000 ft (2,400 to 1,800 m).

The Bridge Creek Shelter is a rustic log and shingle shelter in North Cascades National Park. It was built in the 1930s by the U.S. Forest Service with Civilian Conservation Corps labor.

Poltergeist Pinnacle (8,200+ ft (2,500+ m)) is in North Cascades National Park in the U.S. state of Washington. Located in the northern section of the park, Poltergeist Pinnacle is in the Picket Range and is .09 mi (0.14 km) south of Mount Challenger and for all basic purposes, is one of the main pinnacles of Mount Challenger.

Repulse Peak is a 7,923-foot (2,415-metre) mountain summit in the North Cascades in the U.S. state of Washington. It is located on the border of the Stephen Mather Wilderness and North Cascades National Park. It is situated midway between Black Peak and Fisher Peak, and can be seen from the North Cascades Highway. Precipitation runoff from Repulse Peak drains into tributaries of the Skagit River and Stehekin River. Topographic relief is significant as the east face rises over 2,900 feet (880 meters) in 0.53 mile (0.85 km).

Reynolds Peak is an 8,517-foot (2,596-metre) mountain summit located in the Methow Mountains, a sub-range of the North Cascades in Washington state. It is protected by the Lake Chelan-Sawtooth Wilderness within the Okanogan–Wenatchee National Forest. Reynolds Peak has a subsidiary peak, North Peak (elevation 8,384 feet (2,555 m)), which is 0.3 miles (0.48 km) north of the summit. The nearest higher neighbor is Oval Peak, 8.55 miles (13.76 km) to the southeast. Precipitation runoff on the east side of the mountain drains into the Twisp River via Reynolds Creek, whereas the west side of the mountain drains to the Stehekin River via Boulder Creek. Topographic relief is significant as the summit rises 3,500 feet (1,100 meters) above Reynolds Creek in approximately one mile.

The Swamp–Meadow Cabin (east) is in North Cascades National Park, in the U.S. state of Washington. Constructed sometime in the early 1910s by the North Coast Mining and Milling Company, the cabin was a warm season residence used by company employees for storage and residence while working their mining claims on Thunder Creek. The cabin was constructed plainly of rounded hewn logs, square notched at the corners. The cabin is 15 by 18 ft (4.6 by 5.5 m) with an offset door at the south end, above which it is sheltered by the large overhanging extension of a gable roof which is wood shingled. Swamp–Meadow Cabin (east) is near Swamp–Meadow Cabin (west), and both were placed on the National Register of Historic Places in 1989.

The Swamp–Meadow Cabin (west) is in North Cascades National Park, in the U.S. state of Washington. Constructed sometime in the early 1910s by the North Coast Mining and Milling Company, the cabin was a warm season residence used by company employees for storage and residence while working their mining claims on Thunder Creek. The 1+1⁄2-story cabin was constructed plainly of 16 in (410 mm) round hewn logs, square notched at the corners. The cabin is 18 by 22 ft (5.5 by 6.7 m) with an offset door at the east end, above which it is sheltered by the 10 ft (3.0 m) extension of the gable roof which is wood shingled. Swamp–Meadow Cabin (west) is near Swamp–Meadow Cabin (east), and both were placed on the National Register of Historic Places in 1989.

Ghost Peak (8,000+ ft (2,440+ m)) is in North Cascades National Park in the U.S. state of Washington. Located in the northern section of the park, Ghost Peak is in the Picket Range and is .30 mi (0.48 km) NNE of Phantom Peak and .20 mi (0.32 km) south of Crooked Thumb Peak.

Roush Creek Falls is a steep cascade in North Cascades National Park, Washington, U.S. Glacial melt waters from Eldorado Glacier flow south creating Roush Creek. Not far from its origination, Roush Creek flows over Roush Creek Falls, which at 2,000 ft (610 m), is one of the tallest waterfalls in Washington.

Elija Ridge is a prominent 7,739 ft (2,360 m) ridge located in North Cascades National Park, in Whatcom County of Washington state. It is part of the North Cascades which is a subset of the Cascade Range. The highest point is called Elija Peak, and another peak on this ridge with sufficient prominence to qualify as a separate summit is called Ezekiel, (7,521 ft; 2,292 m). The nearest higher neighbor is Gabriel Peak, 1.9 miles (3.1 km) to the southeast, Beebe Mountain is set 1.86 miles (2.99 km) to the northeast, and Ruby Mountain is 4.86 miles (7.82 km) to the northwest. Precipitation runoff from this ridge drains to Ross Lake via Panther Creek. This geographical feature is named after the prophet Elija, which is a reference to Tommy Rowland who settled in the Skagit River area in 1895 and later pronounced himself the "Prophet Elisha." Gabriel Peak, Genesis Peak, and Mount Prophet are also named in association with Rowland.

Electric Butte is an unofficially named 6,400-foot (2,000-metre) mountain summit near the western edge of the North Cascades, in Whatcom County of Washington state. It is located north of Marblemount and Logger Butte, within North Cascades National Park. The nearest higher neighbor is Canadian Bacon, 1.44 mi (2.32 km) to the north, with Bacon Peak, 2.01 mi (3.23 km) to the northwest. Precipitation runoff from Electric Butte drains into tributaries of the Skagit River.

Styloid Peak is the unofficial name of a 6,972-foot (2,125-metre) mountain summit located in North Cascades National Park in Skagit County of Washington state. Its nearest higher peak is Mantis Peak, 0.33 mi (0.53 km) to the west, and Snowfield Peak rises 1.7 mi (2.7 km) to the west. Precipitation runoff from Styloid Peak drains into Neve Creek and McAllister Creek, both tributaries of Thunder Creek. The first ascent of Styloid Peak was made on May 31, 1981, by John Roper and party, on the same day that they climbed Distal Phalanx. Roper, being a doctor, named some of his many first ascents for anatomical parts of the body.

Hannegan caldera is a 3.72 million year old volcanic collapse structure in the North Cascades of the U.S. state of Washington. The caldera collapsed during two separate volcanic eruptions that produced as much as 140 km³ of rhyolite ash.

Depot Valley Falls is a 400-foot (120 m) waterfall on the Custer Fork Depot Creek that shares the same cliff as the nearby, much larger Depot Creek Falls, both in Whatcom County, Washington, United States. It is 100 feet (30 m) wide.

Himmelhorn is a 7,880+ ft (2,400+ m) mountain summit located in the remote and rugged Picket Range within North Cascades National Park in the state of Washington. The peak lies 0.7 mi (1.1 km) west of Mount Terror and the small Mustard Glacier lies on its northern slope. The first ascent of Himmelhorn was made on September 8, 1961, by Ed Cooper, Glen Denny, Joan and Joe Firey, and George Whitmore. Originally called Himmelgeisterhorn, Himmelhorn means Horn of the Sky Spirit.

Glee Peak is a 7,180-foot-elevation (2,190-meter) mountain summit located in Whatcom County of Washington state, United States. It is set within North Cascades National Park and Stephen Mather Wilderness, where it is situated 1.7 mile north of The Roost and one mile south of Azure Lake. The nearest higher neighbor is McMillan Spire, 1.7 miles (2.7 km) to the north-northwest. Glee Peak is part of the Picket Range which is a sub-range of the North Cascades, and like many North Cascades peaks, it is more notable for its large, steep rise above local terrain than for its absolute elevation. Topographic relief is significant as the northeast aspect rises 4,000 feet (1,200 meters) above Stetattle Creek in approximately one mile, and the southwest aspect rises 6,000 feet (1,800 meters) above Goodell Creek in three miles. Precipitation runoff from the mountain drains into these two creeks which are both tributaries of the Skagit River. Who made the first ascent of the summit is unknown, but Glee Davis and Burton Babcock were climbing in the immediate area as early as 1905.

There are four prominent waterfalls in the basin of a short tributary of Sulphide Creek, on the southeast flank of 9,127-foot (2,781m) Mount Shuksan in North Cascades National Park, Washington. Seahpo Peak Falls and Cloudcap Falls, the taller two of the three, are located on separate streams that converge and plunge over Rockflow Canyon Falls. The unnamed outlet stream from these waterfalls flows into Sulphide Creek, which flows into the Baker River. Another waterfall is Jagged Ridge Falls, on a tributary of the unnamed stream.

Twin Needles are a pair of 7,936-foot (2,419-metre) and 7,840+ ft (2,390+ m) spires located in the remote and rugged Picket Range within North Cascades National Park in the state of Washington. The peaks are situated 0.55 mi (0.89 km) west of Mount Terror which is the nearest higher peak. The Mustard Glacier lies on the northern slope of the peaks, and Himmelhorn lies immediately west. The first ascent of Twin Needles was made on August 17, 1932, by William Degenhardt, James Martin, and Herb Strandberg. Twin Needles can be seen from the 100 meter Sterling Munro Trail located behind the park's Newhalem Visitor Center.

Mantis Peak is the unofficial name of a 7,614-foot (2,321-metre) double-summit mountain located in North Cascades National Park in Skagit County of Washington state. The nearest higher peak is Snowfield Peak, 1.23 mi (1.98 km) to the west, and Styloid Peak rises 0.48 mi (0.77 km) to the east. Precipitation runoff from Mantis Peak drains into Neve Creek and McAllister Creek, both tributaries of Thunder Creek. With a steep north face sculpted by the Neve Glacier, relief is significant as the summit rises 4,000 feet above the head of Neve Creek valley in less than one mile, and the south side rises 5,400 feet above McAllister Creek valley in 1.5 mi (2.4 km). The first ascent of Mantis Peak was made August 16, 1973 by Marilyn and Stan Jensen. "Distal Phalanx", the slightly higher twin summit, was first climbed on May 31, 1981, by John Roper and party, on the same day that he climbed Styloid Peak. Roper, being a doctor, named some of his many first ascents for anatomical parts of the body.

Indecision Peak is a 7,945 ft (2,420 m) double-summit mountain located in the North Cascades in the U.S. state of Washington. It situated in North Cascades National Park, on the crest of the Cascade Range, on the shared border of Chelan County with Skagit County. Despite its position only 5 mi (8.0 km) west of the North Cascades Highway, it is not visible from any road. Its nearest higher neighbor is Mount Arriva, 0.92 mi (1.48 km) to the north. The first ascent of the summit was made August 2, 1972, by Bill Arundell, Frank King, Marilyn and Stan Jensen, and Joanne Williams. The lower northeast summit is known as Meulefire Peak (~7,930 ft), which is a portmanteau of Meulemans and Firey, the names of the first mountaineers to climb it in 1966.  

Rhino Butte is a remote 6,914-foot-elevation summit located in Whatcom County of Washington, United States. It is situated within North Cascades National Park and Stephen Mather Wilderness, and is part of the Picket Range, a subset of the North Cascades. Like many North Cascades peaks, Rhino Butte is more notable for its large, steep rise above local terrain than for its absolute elevation. Topographic relief is significant as the north aspect rises 4,350 feet (1,330 meters) above McMillan Creek in one mile, and the south aspect rises 4,700 feet (1,400 meters) above Stetattle Creek in two miles. Precipitation runoff from the mountain drains to the Skagit River via these two creeks. The nearest higher neighbor is Elephant Butte, 1.27 mile to the east-northeast, with Hippo Butte (6,889 ft) between the two. A high alpine ridge connects Rhino to McMillan Spire, 1.7 mile to the west-southwest, and Azure Lake lies below this ridge. The first ascent of the summit was made October 15, 1978, by John Roper. This geographical feature's name has not yet been officially adopted by the United States Board on Geographic Names.

Blum Basin Falls is a waterfall in Whatcom County, in the U.S. state of Washington. It is located in North Cascades National Park on the headwaters of Blum Creek, a tributary of the Baker River. Fed by two small retreating glaciers and several snowfields on the southern side of Mount Blum, the waterfall is formed by the largest meltwater stream that feeds the mainstem of Blum Creek. The falls tumble 1,680 feet (510 m) down a high glacial headwall several miles within the national park in two distinct stages; the first is a series of slides over rounded rock, above the tree line, and the second is a series of near-vertical plunges to the forested valley below. Although most of the falls is clearly visible, parts of it are obscured by tall pines that grow at its base. There is no trail leading to the waterfall.

Genesis Peak is a 7,244-foot (2,208-metre) mountain summit located in the North Cascades, in Whatcom County of Washington, United States. It is situated within North Cascades National Park and Stephen Mather Wilderness. The nearest higher neighbor is Mount Prophet, 2.22 miles (3.57 km) to the northwest. Like many North Cascade peaks, Genesis Peak is more notable for its large, steep rise above local terrain than for its absolute elevation. Topographic relief is significant since the southern aspect of the mountain rises 5,400 feet above the Big Beaver Valley in approximately two miles (3.2 km), and the eastern aspect of the mountain rises 5,600 feet above Ross Lake in approximately three miles (4.8 km). Precipitation runoff from the mountain drains into Ross Lake via Skymo, No Name, and Big Beaver Creeks. The first ascent of this peak was made September 13, 1975, by Norman Burke, Cliff Lawson, Ed Lebert, and Dan Sjolseth.

The Sourdough Fire was a wildfire in Whatcom County, Washington, in the Pacific Northwest region of the United States. It was reported on July 29, 2023, near Sourdough Mountain in North Cascades National Park and was likely caused by an earlier lightning strike. The fire caused the closure of the North Cascades Highway (State Route 20) and evacuations of recreational facilities and three Seattle City Light hydroelectric dams in the area. As of September 15, 2023, the Sourdough Fire had been estimated to have burned 6,369 acres (2,577 ha) and was 25 percent contained.

S Glacier is in North Cascades National Park in the U.S. state of Washington, on the east slopes of Hurry-up Peak. S Glacier is disconnected in several spots. The uppermost sections terminate in icefalls, while the lower section ends in talus. Total descent of the glacier is from 7,600 to 5,500 ft (2,300 to 1,700 m). Yawning Glacier lies .75 mi (1.21 km) to the north.