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Langley Peaks Resurvey

July 26 – August 1, 2021

This is a week of scientific survey work in the high Sierra of Sequoia National Park. Participants are National Parks and NPS and US Forest Service staff, volunteer botanists, students, research scientists and previous GLORIA workshop attendees. If you have high altitude experience, are a reasonably competent botanist, are familiar with GLORIA-style surveys, we would love to have you!


July 25 – Meet/camp Cottonwood Pass TH
July 26 – Hike to Upper Soldier Lk base
July 27 – Confluence Knob survey
July 28 – Langley West/South surveys
July 29 – Iridescent Ridge survey
July 30 – Weather make-up day
July 31 – Hike out to TH


Map and Directions

From Lone Pine, CA:

From downtown Lone Pine, take the Whitney Portal Road west into the mountains. After 3.1 miles, turn left on Horseshoe Meadows Rd. Take this for 19.4 miles and turn left into the campground. See the map below. The Cottonwood Pass trailhead campground is on Google Maps for easy navigation.


This survey requires a solid backpack in to our base camp at Upper Soldier Lake where we will camp for the duration of the survey. The night before the hike in, we will camp at the Cottonwood Lakes Walk-in campground. Participants are expected to supply all of their backpacking and camping gear although gear can be rounded up for those who may be missing an item. We will have stock 

Personal Gear List

Backpack with rain cover

Tent or bivy-sac

Sleeping pad

Cold-weather sleeping bag

Food for 8 days

Bear-proof food storage can

Water filter or iodine tablets

Water containers

Backpack stove and fuel

Cooking pots

Clothes for warm days/cool nights


warm and shade hat


Rain jacket and pants

Utility tool/knife


Lip balm with SPF

Mosquito repellent

Camp towel

Head lamp

Extra batteries

Backpack shovel

Basic first aid kit

TP/personal hygiene

Optional Gear List

Camp chair


Mount Langley view NW to Whitney_1323.JP
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