North America / Sierra Nevada

Half Dome

Photo credits and licenceJon Sullivan · Public domain · Yosemite 20 bg 090404. Preview cropped from the top.

Source credit: [1]

Any adaptation of a ShareAlike image remains under its linked licence.

Source-linked route information · coverage incomplete

By Climbing Chronicle Redaktion · Planning sources: checked 2026-10-06

About Half Dome

Half Dome's cable ascent combines a long valley outing with an exposed summit section. Permit and weather checks are part of the plan.

NPS · Half Dome day hike and cables

Geographic source notes

Wikidata description: granite dome in Yosemite National Park, California. Imported context (CC0); retrieved 2026-10-05, not independently reviewed.

This overview is assembled from the geographic records cited below; it has not been independently field-verified.

Mountain facts

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Routes and variants

1 source-linked entries · research checked 2026-10-06. The inventory remains incomplete.

Documented information and open research

Starting point: 1 of 1 · Difficulty with grading system: 0 of 1 · Elevation gain: 1 of 1 · Duration: 1 of 1 · Season: 0 of 1

0 historical entries. These counts describe published entries, not all possible routes. Current access is not established.

See route research coverage and priorities →
Compare 1 routes

Grades retain their published rating system; different systems and historical grades are not equivalent. Elevation gain means climbing metres, not summit altitude. Missing figures are not estimated.

Scroll sideways to compare all columns. Select a route name for its details.

Route comparison · 1 entries · sources checked 2026-10-06
RouteActivity / directionDifficulty / systemStarting pointElevation gainDurationSources
Happy Isles to Half Dome via cablesScramblingAscentNot documentedHappy Isles4,800 ftPublished ascent gain from the valley; not summit elevation.10–12 hTypical complete 14–16-mile return outing; some take longer.Source 1 ↗

Choose an activity to see its entries. Ascent, descent, approaches and historical climbing lines are labelled separately.

Scrambling (1)
Happy Isles to Half Dome via cablesScrambling · Ascent

NPS · Half Dome day hike and cables · source checked 2026-10-06

The source establishes a route listing. Detailed navigation, current protection and conditions require the original reference.

Route questions, answered

Specific planning questions, with the scope of each source kept visible.

How long is the Half Dome outing from the valley?

NPS gives 14–16 miles return and typically 10–12 hours, sometimes longer. That covers the complete outing, not just the cables.

NPS · Half Dome day hike and cables

Can I use the usual cable itinerary when the cables are down?

NPS advises against ascent when the cables are down, on wet rock, or with nearby storm clouds. Check actual cable status.

NPS · Half Dome day hike and cables

Does a camping reservation replace the Half Dome permit?

No. Backpackers request Half Dome permission with a wilderness permit. Day hikers use the separate Half Dome permit process.

NPS · Half Dome day hike and cables

Climbing Chronicle Redaktion · Sources checked · Source research; current route conditions are not confirmed.

Planning at a glance

Access and starting point

Happy Isles is the usual start. A Half Dome permit is required when the cables are up.

NPS · Half Dome day hike and cables

Difficulty and required experience

The cables are exposed; NPS advises against ascent on wet rock or with nearby storm clouds. A numeric grade remains open.

NPS · Half Dome day hike and cables

Season and restrictions

Cable installation and removal depend on conditions. Check actual status rather than treating the usual calendar as an opening guarantee.

NPS · Half Dome day hike and cables

Sources for current information

This page stores reference sources, not live conditions. Check the provider’s publication date and route coverage before use.

Research still needed

For Half Dome, this atlas does not yet document first-ascent history. Missing first-ascent evidence does not mean a mountain is unclimbed.

Use the linked sources as starting points; summit coordinates do not describe a climbing route or public access.

Sources and coverage

Imported geographic data from Wikidata (CC0); not independently field-verified. Data snapshot: 30 September 2026. Elevations and boundaries can differ between sources. Mountain-range membership follows explicit Wikidata relationships or a coordinate match against published GMBA v2 standard polygons. GMBA: Global Mountain Biodiversity Assessment (2021), CC BY 4.0; methodology: Snethlage et al. (2022). Missing evidence remains open.

Explore the surrounding regions

Sierra Nevada · North American Cordillera · American Cordillera · Pacific Coast Ranges · Mountains in United States

Editorial responsibility

Responsible publisher and editorial author: Climbing Chronicle Redaktion. AI-assisted source research; no on-site inspection or professional route approval is claimed.

How sources, authorship and review dates work

Further reading about Half Dome

Links discovered through the Wikidata record. These articles have not been checked as evidence for route, difficulty or access claims.

Half Dome

Original image and credits

Mountains nearby

Recorded mountains, ordered by straight-line distance. This does not describe a route or accessible connection.

1–20 of 24 recorded mountains within 25 km