GUNUNG · Amerika Serikat

Mount St. Helens

Mount St. Helens (Lawetlat'la)

Information

Elevation: 2.549 m
Country: Amerika Serikat (US)
Location / Range: Cascade Range, Washington (Mount St. Helens National Volcanic Monument)
Mountain type: Volcano (active stratovolcano)
Volcanic?: Yes — volcano
Coordinates: 46.2003, -122.1894
Difficulty: Moderate — a non-technical but tiring climb; the winter route requires snow skills (ice axe and crampons)
Best Season: Mid-May–October (Monitor Ridge in summer); winter–spring (Worm Flows, requires snow technique)
Permits & Rules: A climbing permit is REQUIRED year-round to go above 4,800 feet (~1,460 m); a daily quota is in place and sold via recreation.gov, co-managed by the Mount St. Helens Institute & U.S. Forest Service (Gifford Pinchot National Forest). Book well in advance during peak season.
Hazards: Active volcano (the last major eruption on 18 May 1980 flattened the summit and killed 57 people; lava-dome activity continued until 2008), a fragile crater rim and overhanging cornices, loose rock (scree) on Monitor Ridge, snow/ice conditions and avalanche risk on the winter route, and rapidly changing Cascade weather.

Description

Mount St. Helens (2,549 m) is an active stratovolcano in Washington's Cascade Range, famous for its catastrophic 18 May 1980 eruption—the deadliest and most economically destructive volcanic event in U.S. history. The blast tore away the mountain's north flank, lowered its summit by more than 400 meters, and left a huge horseshoe-shaped crater. Today it is a popular climb: the summer Monitor Ridge route from Climbers Bivouac works up lava blocks and scree to the crater rim, while the winter Worm Flows route is a busy snow ascent. The climb is non-technical but long and strenuous, rewarded by a direct view into the active crater, lava dome, and Crater Glacier—and a quota permit is required year-round.

Gallery

Foto bersumber dari Wikimedia Commons — klik untuk memperbesar & lihat sumbernya.

Routes

Monitor Ridge (rute musim panas, dari Climbers Bivouac)

Sedang (Kelas 2–3, non-teknis) — hutan, blok lava, lalu scree vulkanik

Pendakian sehari ~7–10 jam pulang-pergi (~16 km, naik ~1.450 m)

Rute standar musim panas dari trailhead Climbers Bivouac. Diawali jalur hutan, lalu menapaki rangkaian blok lava bertanda tiang kayu, dan ditutup tanjakan scree vulkanik yang melelahkan hingga bibir kawah pada ~2.549 m. Tidak teknis tetapi panjang dan menguras tenaga. Izin berkuota WAJIB untuk naik di atas 4.800 kaki; pesan lewat recreation.gov. Bibir kawah rapuh—dilarang melintas atau turun ke kawah.

Source

Worm Flows (rute musim dingin/semi, dari Marble Mountain Sno-Park)

Sedang–menantang (pendakian salju) — perlu kapak es, crampon & alpine-start

Pendakian sehari ~8–12 jam pulang-pergi (lebih panjang dari Monitor Ridge)

Rute musim dingin dan awal semi dari Marble Mountain Sno-Park ketika jalan ke Climbers Bivouac tertutup salju. Menapaki punggungan aliran lava ('worm flows') yang tertutup salju menuju bibir kawah. Butuh kemampuan bergerak di salju, kapak es, dan crampon; mulai dini hari untuk salju yang masih keras. Tetap memerlukan izin berkuota sepanjang tahun; periksa kondisi longsoran dan cuaca Cascade.

Source

Safety Statistics

Aggregated for prevention and awareness — not a casualty list. Read alongside the safety tips below.

Indicative — small sample size.

57 Recorded deaths

Period 1980–1980 · Scope: one disaster, the eruption of 18 May 1980. USGS reports 57 deaths across the affected area; this is neither a climber death total nor an all-time mountain total. Wikipedia confirms the commonly reported figure while noting uncertainty in casualty accounting. That cross-check is not an independent census, so the single-source flag is retained. The data are indicative for hazard prevention, not an estimate of climbing risk: the reviewed sources provide no comparable summit or climbing-attempt denominator. Rates, risk rankings, cause percentages and annual trends are therefore omitted. Additional climbing hazards below are narrative guidance, not a breakdown of those 57 deaths. · single source

Causes of death

Fall

💡 Mount St. Helens Institute warns that cornices can collapse and people have fallen into the crater. Stay away from unsupported crater edges; do not treat other people's tracks as proof of safety. This source provides no death count for this category.
Source
Severe weather

💡 Check forecasts at all elevations and the latest avalanche bulletin; carry cold and wet weather layers plus a map, compass and GPS with offline maps. The Institute's conditions bulletin expires 24 hours after posting unless stated otherwise; this historical report is not a trip forecast.
Source
Other

💡 USGS explains that pyroclastic flows are difficult or impossible to escape once they arrive; hazardous areas must be evacuated beforehand. Follow closures and evacuation orders rather than waiting to see a flow before leaving the area.
Source

Notable incidents

1980 18 May 1980 — eruption and the importance of early evacuation

After two months of earthquakes and small explosions, the eruption produced a high-speed blast, ash and lahars that devastated the surrounding area. USGS reports 57 deaths. This is the same event as the headline count, not additional casualties. Prevention lesson: trip decisions must follow monitoring, warnings and official evacuation instructions; a historical disaster count does not measure the probability of death on a present-day climb.
Source

Statistics source: Source Source

Climbing Experiences

Climbers' experiences on Mount St. Helens split by season. In summer, the Monitor Ridge route from Climbers Bivouac works up forest, then lava blocks and tiring volcanic scree to the crater rim with a direct view of the lava dome and Crater Glacier. In winter and spring, the Worm Flows route from Marble Mountain Sno-Park is an alpine-start snow climb needing an ice axe and crampons. Nearly every account stresses one thing: a quota permit is mandatory, and the crater rim is fragile and off-limits to cross.

References

The summary above is compiled from the following sources. Click to explore them yourself.