Mount Thielsen to Tolo Mountain
Pacific Crest Trail Section #181

Located 36.7 miles from La Pine, Oregon

4 Stars
26,871 Steps 1  (11.7 mi)

The Pacific Crest Trail (Section #181) has a maximum elevation of 7,034 ft (2,144 m), a minimum elevation of 4,429 ft (1,350 m), and an elevation gain of 18,225 ft (5,555 m) in the [ A to B ] direction.


The following chart shows the total calories that you may expend on the Pacific Crest Trail Section #181 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
26,87111.7 mi4,429 ft7,034 ft
[ A to B ]
Time 5Floors 6Gain 7Loss 8
6.4 hrs7.818,225 ft20,277 ft
[ B to A ]
6.7 hrs9.820,277 ft18,225 ft

What is the length of the Pacific Crest Trail Section #181?

The length of the Pacific Crest Trail Section #181 is 11.7 mi (18.9 km) or 26,871 steps.

How long does it take to hike the Pacific Crest Trail Section #181?

A person in good physical health can hike the Pacific Crest Trail Section #181 in 6.4 hrs in the [ A to B ] direction, and in 6.7 hrs in the [ B to A ] direction.

Mount Thielsen to Tolo Mountain Topo Maps

Download free Mount Thielsen to Tolo 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: Lemolo Lake, OR
  2. North Topo Map: Tolo Mountain, OR
  3. Northeast Topo Map: Burn Butte, OR
  4. West Topo Map: Diamond Lake, OR
  5. Topo Map: Mount Thielsen, OR
  6. East Topo Map: Miller Lake, OR
  7. Southwest Topo Map: Pumice Desert West, OR
  8. South Topo Map: Pumice Desert East, OR
  9. Southeast Topo Map: Welch Butte, OR

Is there a Pacific Crest Trail map for Section #181?

Yes, and they're free! The Pacific Crest Trail Section #181 is located on the Mount Thielsen and Tolo Mountain topo maps. Use the adjoining quadrangle legend to download the maps.

KML Custom Maps

PCT181T.kmz is a free KML custom map of the Pacific Crest Trail Section #181 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 #181, 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.

Copyright © 1998-2017

Plan Ahead and Prepare