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Ridgeline Ramblers

Mount Diablo

A Bay Area landmark with a long climb from Mitchell Canyon and far-reaching summit views.

3,849 ftCA • Bay Area / East Bay • Long hike

Quest challenge 5/10 · Bold Ascent

Quest estimate for the described approach: endurance, altitude, and technical terrain combined. Conditions can change the difficulty. This is not an AllTrails or climbing grade.

A summit story waiting to happen.

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Visit your collection and trail journal

Meet the mountain

The approach: Mitchell Canyon summit approach

Summit finish: Mount Diablo’s summit visitor-center area.

A defining Bay Area landmark and a substantial local summit day. State Parks describes the Mitchell Canyon climb as more than seven miles each way with roughly 3,000 feet of climbing. That is the effort behind this rating; higher trailheads offer shorter approaches to the same summit. Choose a mapped itinerary and account for heat, water, and park hours.

TRAILCRAFT TO PRACTICE

Build a full-day plan that leaves time and energy for the descent.

A SUMMIT QUEST TALL TALE · FICTION

The horizon collector

This mountain began collecting horizons and ran out of shelf space. It stacked them in every direction. Visiting clouds are asked to admire the collection without touching.

Explore the Field Guide’s peak legends →

Before you set out

Every good quest starts with a little map time. Explore these route guides and check the latest updates before setting a date.

Sources reviewed 2026-09-08. Check the links for current conditions. The approach above explains our challenge rating; logging this peak does not assign that route to your outing.

State Parks Mount Diablo hiking information ↗

Mitchell Canyon effort and park planning.

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Mount Diablo State Park ↗

Park overview and summit information.

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Find AllTrails routes ↗

Search for an approach that matches your plan.

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Find recent trip reports ↗

Check dates and route choices; reports do not replace current land-manager information.

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“Find AllTrails routes” opens a Google search restricted to AllTrails trail pages, not a selected route. Completion is tracked in Summit Quest and does not sync with AllTrails.