Boulder Peak to Marble Mountain
Pacific Crest Trail Section #157

Located 17.5 miles from Etna, California

4 Stars
21,649 Steps 1  (10.1 mi)

The Pacific Crest Trail (Section #157) has a maximum elevation of 7,093 ft (2,162 m), a minimum elevation of 5,707 ft (1,739 m), and an elevation gain of 25,688 ft (7,830 m) in the [ A to B ] direction.


The following chart shows the total calories that you may expend on the Pacific Crest Trail Section #157 while hiking in the [ A to B ] and [ B to A ] direction at a typical speed and is based on gross weight (which includes anything carried), the topography, trail length and trail conditions.


We survey thousands of miles of trails each year. The following metrics are based on the most accurate trail data; no crowdsourced data.

[ A to B ] or [ B to A ]
Steps 1Length 2Min Ele 3Max Ele 4
21,64910.1 mi5,707 ft7,093 ft
[ A to B ]
Time 5Floors 6Gain 7Loss 8
3.9 hrs0.925,688 ft27,506 ft
[ B to A ]
3.9 hrs0.027,506 ft25,688 ft

What is the length of the Pacific Crest Trail Section #157?

The length of the Pacific Crest Trail Section #157 is 10.1 mi (16.2 km) or 21,649 steps.

How long does it take to hike the Pacific Crest Trail Section #157?

A person in good physical health can hike the Pacific Crest Trail Section #157 in 3.9 hrs in the [ A to B ] direction, and in 3.9 hrs in the [ B to A ] direction.

Boulder Peak to Marble Mountain Topo Maps

Download free Boulder Peak to Marble Mountain topo maps and the adjoining quads to plan your hike. These are full-sheet, 7.5 Minute (1:24,000 scale) topographic maps.

Adjoining 7.5 Minute Quadrangle Legend

  1. Northwest Topo Map: Grider Valley, CA
  2. North Topo Map: Scott Bar, CA
  3. Northeast Topo Map: Russell Peak, CA
  4. West Topo Map: Marble Mountain, CA
  5. Topo Map: Boulder Peak, CA
  6. East Topo Map: Greenview, CA
  7. Southwest Topo Map: English Peak, CA
  8. South Topo Map: Yellow Dog Peak, CA
  9. Southeast Topo Map: Etna, CA

Is there a Pacific Crest Trail map for Section #157?

Yes, and they're free! The Pacific Crest Trail Section #157 is located on the Boulder Peak and Marble Mountain topo maps. Use the adjoining quadrangle legend to download the maps.

KML Custom Maps

PCT157T.kmz is a free KML custom map of the Pacific Crest Trail Section #157 that you can download and view in Google Maps®, Google Earth® and Garmin® handheld GPS devices including the eTrex®, Colorado and Montana series.

Local Weather Forecast

Check the weather forecast; this weather forecast covers the Pacific Crest Trail Section #157, provided by the National Weather Service. (



  1. Steps is a unit of distance equal to the sum of stride lengths that vary with the terrain.
  2. Length is the distance of the trail between the two trailheads, measured on the trail.
  3. Min Ele is the minimum elevation on the trail.
  4. Max Ele is the maximum elevation on the trail.
  5. Time is the typical total time required to hike the trail.
  6. Floors is the sum of distance on the trail where angles to the horizontal is between 30 and 50 degrees (the angle of a stairway) divided by ten, the height of one floor.
  7. Gain is the cumulative elevation gain.
  8. Loss is the cumulative elevation loss.

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