Rocky Mountain Summits

Idaho Peakbagging · Nine Summits Above 12,000 Feet

Idaho’s 12ers

Idaho has just nine peaks above 12,000 feet—and seven of them rise from the rugged Lost River Range. Most require Class 3 scrambling, big elevation gain, loose mountain terrain and a willingness to get well off the beaten path. This page brings together route information, the known completers list and the history of the Idaho 12ers Speed Challenge.

912,000' Peaks
3Mountain Ranges
7Lost River Peaks
12,662'Highest · Borah
⛰️⚡
Idaho 12ers Speed Challenge
Nine 12,000-foot peaks. One clock.
How fast can they all be climbed?
View the Challenge & Records →

Idaho 12er Completers

The known climbers who have completed all nine Idaho 12ers. If you belong on this list and aren't shown, send me a note.

Idaho 12er Completers | Current Finishers Count: 385
Aaron Ajeti
Boise
Aaron Christensen
Idaho Falls
Aaron Wood
Nampa
Alaina Robson
Idaho Falls
Alan Bean
Eagle
Alan Campbell
Shelley
Alan Southern
Blackfoot
Alex Feldman
Boise
Alex Hon
Boise
Alice Schenk
Rupert
Alicia Brill
Stanwood, WA
Allen Ploss
Jerome
Alyson Kirk
Morrison, CO
Amanda Breen
Ketchum
Amanda Vereecken
Pocatello
Amy Kelly
Ketchum
Andrew Bodily
Idaho Falls
Angie Martin
Rigby
Annie Langston
Boise
April Watts
Boise
Ashley Delonas
Pocatello
Bart Thomas
Chubbuck
Ben Anderson
Chubbock
Ben Jorgensen
Middleton
Ben Smith
Sun Valley
Bill Manny
Boise
Blake Bundy
Pocatello
Bob Bell
Moscow
Bob Marcinko
Blackfoot
Brad Chilton
Pocatello
Brad Eidam
Boise
Bradyn Gunter
Chubbuck
Brandon Gunter
Pocatello
Brenda Hughes
Kimberly
Brendon Melander
Cheyenne, WY
Brent Howard
Idaho Falls
Brent Lulloff
Boise
Bret Vaterlaus
Boise
Brett Sergenian
Boise
Brian Dunstan
Nampa
Brian Poster
Ketchum
Brian Vega
Boise
Bridget Bedke
Boise
Brittany Peterson
Boise
Brittany Roper
Boise
Bruce Dunham
Boise
Buck Horton
Idaho Falls
Camden Patrie
Ketchum
Carl Hamke
Boise
Carl Passino
Idaho Falls
Chad Henke
Twin Falls
Charles Cooper
Boise
Charles Trost
Pocatello
Charlie Eiriksson
Boise
Chris Delonas
Pocatello
Chris Murdock
Idaho Falls
Chris Williams
Pocatello
Christine Williams
Blackfoot
Christopher Jensen
Idaho Falls
Chuck Ferguson
Idaho Falls
Cian Barg
Boise
Clinton Barg
Boise
Clinton Wilson
Idaho Falls
Cody Lind
Challis
Cody Lloyd *
Ketchum
Cole McKinlay
Pocatello
Colin Chambers
Donnelly
Colleen Smith
Boise
Corey Nielsen
Idaho Falls
Cory Gentry
Pocatello
Craig Clouatre
Livingston, MT
Craig Peck
Aberdeen
Curt Davis
Jerome
Dalton Johnson
Rigby
Damon Christensen
Twin Falls
Dan Cotner
Boise
Dan Gunnerson
Eagle
Dan Hiatt
Hailey
Dan Noakes
McCall
Dan Robbins
Boise
Dan Weeks
Pocatello
Dana Hanson
Boise
Dandee Hale
Blackfoot
Daniel Bertram
Salmon
Daniel Page
Idaho Falls
Daniel Paulson
Nampa
Danielle Leckenby
Nampa
Dave Bingham
Hailey
Dave Pacioretty
Pocatello
Dave Pahlas
Meridian
David Lloyd
Ketchum
David Maguire
Pocatello
David Patrie
Ketchum
Dawn Moore
Orofino
Deb Rose
Boise
Derek Hysell
Boise
Derek Percoski
Hailey
Dick Huberty
Twin Falls
Dillon Mo Haws
Boise
Don Otis
Sandpoint
Doug LaMott
Boise
Doug Packer
Moreland
Douglas Jones
Rupert
Duane Monte
Idaho Falls
Dustin Summers
Darlington
Dylan Wooding
Boise
Earl McAlister
American Falls
Ed Cameron
Bellevue
Eddie Delonas
Pocatello
Eden Dunstan
Nampa
Elliot Huntsman
Shelley
Emerson Parsons
Idaho Falls
Emily Slike
Idaho Falls
Emily Victor
Pocatello
Eric Larsen
Idaho Falls
Eric Schulz
Boise
Erik Hallgren
Idaho Falls
Erik Quissell
Boise
Erin Bell
Twin Falls
Evan Stout
Nampa
Forest Dean
Missoula, MT
Frank Gallant
Boise
Frank Stanton
Ketchum
Gabe Clement
Boise
Garrett Hale
Preston
Gary Chadwick
Boise
Gary Taylor
Twin Falls
Gayle Matsumuro
Boise
Geoff Nielson
Idaho Falls
George Lake
Idaho Falls
George Reinier
Caldwell
Gioni Pasquinelli
Eagle
Grant Brill
Palo Alto, CA
Grant Kosmicki
Pocatello
Grayson Russell
Idaho Falls
Grayson Truden
Boise
Greg Perkins
Boise
Guy Paul
Merdian
Harrison Clement
Boise
Hayden Veytia
Bidart, France
Haylee Stocking
Hailey
Heidi Holland
Boise
Henry Priebe
Nampa
Henry Whitney
Kimberly
Hudson Bertram
Salmon
Hugh Mossman
Boise
Hyrum Benson
Idaho Falls
Irene Vogel
Boise
Jacob Robinson
Parma
Jacob Westrick
Boise
Jaime Lee
Twin Falls
James Petzke
Boise
James Ryan Roberts
Idaho Falls
James Squires
Mountain Home
Jared Campbell
Salt Lake City
Jared Hopkins
Boise
Jason Floyd
Emmett
Jason Koster
Boise
Jason Lee Nipper
Rigby
Jason Talbot
Eagle
Jason Tonn
Boise
Jay Friedly
Mountain Home
Jay Krajic
Boise
JD Leckenby
Buhl
Jeff Beeman
Cocolalla
Jeff Knisley
Boise
Jeff Leibman
Twin Falls
Jeff Zingre
Idaho Falls
Jenn Christensen
Twin Falls
Jennifer Peine
Rexburg
Jenny Bedke
Boise
Jerry Downey
Pocatello
Jerry Manter
Boise
Jerry Painter
Idaho Falls
Jet Johnstone
Idaho Falls
Jill Edmundson
Sandpoint
Jim Just
Meridian
Jim Pierce
Coeur d'Alene
Joel Cannon
Salmon
John Cotner
Boise
John Kirk
Morrison, CO
John Olson
Hailey
John Platt
Boise
John R Cauhorn
Eden
Johnny Roache
Mountain Home
Jon Botz
Fairfield
Jon Davey
Boise
Jonathan Giles
Eagle
Jordan Bruning
Pocatello
Jordan Gardner
Rigby
Josh Unger
Boise
Joyce Garnet
Ashton
Judi Steciak
Boise
Julie Taylor
Twin Falls
Justin Johnson
Pocatello
Justin Stevenson
Hailey
Kaleb Houck
Idaho Falls
Kam Knisley
Boise
Katherine Lee
Montpelier
Katie Terhune
Boise
Kay Johnson
Firth
Keith Jean
Lowell, MA
Kelly Lance
Pocatello
Kelly Luff
Kimberly
Kelsey Webster
Boise
Kema Barrie
Declo
Ken Burgess
Boise
Kendra Maclean
Boise
Kenn Hardin
Meridian
Kent Hobbs
Pocatello
Kerry Kelley
Boise
Kevin Hoffman
Boise
Kevin Kunz
Ammon
Kevin Renner
Harrison
Kevin Watt
Boise
Kirk Nuttall
Idaho Falls
Kregg Aytes
Pocatello
Kurt Priebe
Nampa
Kylee Phillips
Blackfoot
Landon Otis
Sandpoint
Larry McAlister
American Falls
Larry Prescott
Rexburg
Larry Woodbury
Worley
Lee Collins
Boise
Lina Mustafa
Boise
Lincoln Whitney
Kimberly
Logan Hoffman
Boise
Louie Konkol
Boise
Luke Nelson
Pocatello
Lyman Dye
Idaho Falls
Maranda Cantrell
Boise
Margo Lasky
Pocatello
Marie Gatti Clark
Atlanta
Marilee Packer
Moreland
Mark Jones
Boise
Mark Polatis
Thomas
Marty T. Cooke
Pocatello
Mary Fiedler
Sandpoint
Matt Darrington
Shelley
Matt Durrant
Boise
Matt Morell
Hailey
Matt Schwehr
Boise
Matthew Henderson
Boise
Matthew Undzius
Boise
Max Schellhorn
Seattle, WA
Mcailee Benson
Idaho Falls
McKinsey Bruning
Pocatello
Melanie Ahrens
Boise
Michael Boge
Sandpoint
Michael Darcy
Coeur d'Alene
Michael Pelton
Boise
Michael Stanton
Idaho Falls
Michael Summers
Pocatello
Michael Thieme
Idaho Falls
Michelle Sward Lance
Pocatello
Mike Allen
Boise
Mike Fox
Idaho Falls
Mike Howard
Idaho Falls
Mike Johnson
Firth
Mike Sharpes
Boise
Mike Weber
Boise
Mindy Smith
Hailey
Misty McClanahan
Pocatello
Molly A. Terherst
Bonners Ferry
Nancy Gaenzle
Twin Falls
Natalie Jangula
Nampa
Nate Bender
Hamilton, MT
Nate Hunsaker
Ammon
Nate Kenney
Boise
Nate Scales
Hailey
Nic Stover
Boise
Nick Blatz
Ketchum
Nick Karl
Denver (CO)
Norman Wright
Filer
Oleg Bougri
Boise
Otto Ian Lang
Salt Lake City
Owen Moroney
Boise
Paige Hyde
Blackfoot
Pat McGrane
Boise
Patrick Lang
Pocatello
Patty Russell
Idaho Falls
Paul Hansen
Blackfoot
Paul Kreiner
Star
Paul Laggis
American Falls
Paul Lind
Challis
Petya Stoyanova Johnson
Nampa
Philip King II
Boise
Phillip Vincent
Boise
Quin Mace
Idaho Falls
Quint Pimentel
Pocatello
Rachel Wolfe
Ketchum
Randy Hickman
Blackfoot
Randy McNeel
Moscow
Randy Spurgeon
New Plymouth
Ray Hannah
Idaho Falls
Raymond Mullenax
Boise
Rebecca Musser
Fruitland
Reese Jackson
Blackfoot
Rex Campbell
Grace
Richard Wallace
American Falls
Rick Baugher
Idaho Falls
Rick Ruffridge
Pocatello
Rick Surber
Boise
RJ Willmore
Idaho Falls
Rob Greenig
Ammon
Rob Landis
Hailey
Rob Reterson
Nampa
Robert Fair
Boise
Robert Houk
Boise
Rodolfo Jodra
Boise
Roger McMurtrey
Idaho Falls
Ron Horton
Puyallup, Wa
Ryan Byers
Pocatello
Ryan Cameron
Pocatello
Ryan Harrigle
Akron, OH
Sam Root
Idaho Falls
Samuel Monk
Pocatello
Sara Ajeti
Boise
Sasha Socolov
Moldova (Europe)
Sawyer Casey
Boise
Scott Kelly
Ketchum
Scott Trost
Lewiston
Scrap McInski
Merdian
Sean Duffy
Boise
Sedona Cannon
Salmon
Shane Jenné
Boise
Sherwin Pestka
Meridian
Sophia Mazzoni
Hailey
Spring Bean
Eagle
Stacy Human
Kimberly
Stan Siewert
Burley
Stephanie Helm
Challis
Steve Carpenter
Idaho Falls
Steve Grantham
Boise
Steve Mandella
Pocatello
Steven (JB) Harris
Ririe
Steven Sheriff
Missoula
Summer Virnig
Twin Falls
Susan Gallagher
Boise
Sydney Human
Kimberly
Tad Schafer
Meridian
Tammy Ryan Perkins
Boise
Tanner Henke
Twin Falls
Tate Morell
Hailey
Taylor Amato
Ketchum
Taylor Mossman-Fletcher
Boise
Ted Brasket
Prescott, AZ
Terri Rowe
Meridian
Terry Howard
Idaho Falls
Terry Lee
Boise
Tess Hollister
Hailey
Tex Virnig
Twin Falls
Thatcher Sandow
Blackfoot
Thijs Lloyd
Ketchum
Thomas Cox
Boise
Thomas Salaiz
Aberdeen
Thomas Smiley
Ketchum
Tim Jorgensen
Star
Tim McClanahan
Pocatello
Tim Thieme
Idaho Falls
Todd Carlson
Boise
Todd Moseley
Rexburg
Todd Slusser
Rupert
Tom Lopez
Boise
Tony Hale
Preston
Tory Jones
Boise
Trace Bedke
Burley
Tracy Cureton
Rexburg
Trent Reynolds
Boise
Tricia Varvel
Ririe
Troy D. Williams
Firth
Troy Schneyder
Idaho Falls
Tucker Barg
Boise
Ty Hancock
Menan
Ty Snarr
Rexburg
Tyler Wallace
Declo
Vince Lowe
Boise
Walt Packer
Idaho Falls
Wayne Boyer
Idaho Falls
Wayne Summit Jefford
Iona
Wes Collins **
Moore
Xavier Ostrowski
Boise
Zach Vickery
Boise
Zoie Laggis
American Falls
Zundel Molifua
Boise

* At just 6 years old, Cody becomes the youngest 12er finisher!
** Has climbed all 9 in the winter and summer.

The Idaho 12ers Speed Challenge

Colorado and California have highly publicized fourteener marathons, in which hikers try to break the record for the fastest time up all 14ers in those states. The current record in California is 4 days, 11 hours, 19 minutes. That's for 15 peaks! The Colorado record for 54 peaks is right around 9 days.

For those hikers and climbers that don't want to climb the nine Idaho peaks at a leisurely pace, we have our own speed challenge. While other states have much more famous challenges, the craze of speed records has been slowly working its way to Idaho. In 2002 a friend of mine started scouting in the Lost Rivers for a possible traverse between Leatherman and Breitenbach. In 2003 things heated up and attempts to break the old 8 day record started that summer. By 2018 the record was under a day!

For those seeking to break the Idaho speed record, the following rules apply:
  1. The clock starts when you leave from the first trailhead and ends when you return back to the last trailhead. So if you do Diamond Peak first, the clock starts there and continues as you climb that peak, drive to the Lost Rivers, go through them, drive to Hyndman, and ends when you touch your car at the Hyndman trailhead after having climbed that peak.


  2. No motorized means of travel can occur once you leave the given trailhead for each peak. For instance, you cannot drive a motorcycle into Hyndman Basin, then bag the peak. You can't have a helicopter fly you to the top of each peak. You get the idea...


  3. Traverses ARE allowed. For example, you can climb from Leatherman to Donaldson on the ridgeline if you so desire (and have the ability to).


  4. No porter rule! You must carry your own pack. Someone can accompany you on the climb, but they can't lug your stuff around for you.


  5. Drivers. It is acceptable for someone to drive you between peaks, cook you dinner, etc...

Current Idaho 12er Speed Records (Click on the name to read about the trip)
Time
Person
Residence
Date Completed
Notes
20 hours, 23 minutes Cody Lind Challis 7/14/2018 Current Fastest Time
1 day, 4 hours, 18 min. Luke Nelson and Jared Campbell Pocatello/Salt Lake City 8/17/2014  
1 day, 13 hours, 44 min. Cody Lind, Brittany Peterson, Nate Bender Challis/Boise/Missoula, MT 8/21/2016 Fastest time for a female
1 day, 14 hours, 50 min. Dave Bingham and Rob Landis Hailey 7/25/2005 This was the fastest time for 9 years!
2 days, 14 hours, 48 min. Dillon Mo Haws Boise 9/2009  
3 days, 6 hours Kelly Lance Pocatello 09/04/2017 Kelly ran between the peaks. That's right, no motorized transportation!
3 days, 6 hours, 12 min. Dalton Johnson, Jordan Gardner, Ty Hancock Rigby and Menan 08/03/2017 All were age 17 at the time of compeletion.
3 days, 7 hours, 37 min. Sophia Mazzoni Hailey 08/14/2017 Sophia was 16 years old at the time.
3 days, 11 hours, 16 min. Nic Stover Boise 9/1/2003  
5 days, 7 hours, 38 min.
Matt Darrington Shelley 8/24/2003  
6 days, 6 hours, 6 min.
Tess Hollister Hailey July 2015  
6 days, 13 hours
Ryan Harrigle Akron July 2026  
8 days Buck and Ron Horton Idaho Falls and Moscow (at that time) 9/3/1995  




Idaho’s Nine 12,000-Foot Peaks

Ranked by elevation, with the basic route information and statistics for each summit.

Borah Peak from the west in Idaho's Lost River Range
#1
Borah from the west.

Borah Peak

Borah Peak is the highest peak in Idaho. It is named after Idaho senator, William Borah. It is climbed quite often, as it is the state highpoint. Borah's most famous feature is "chicken-out ridge", which is a knife-edged at about 11,200 feet with 2,000 feet drop-offs on either side. Just after the ridge is a down climb and a snow-bridge crossing... added features that instill fear in some.

Main Route: Southwest Ridge
Elevation
12,662
County
Custer
Range
Lost River
Class
3
Roundtrip
7 miles
Gain
5,550 feet
First Ascent
T.M. Bannon - 1914
Leatherman Peak from the east in Idaho's Lost River Range
#2
Leatherman from the east.

Leatherman Peak

Leatherman Peak is a giant peak when viewed from west from ID 93. It is named after Henry Leatherman, who was a early-day hunter, trapper, teamster, and freight carrier in the Lost River Valley.

Main Route: North Gully/East Ridge from the West Fork of the Pahsimeroi River.
Elevation
12,228
County
Custer
Range
Lost River
Class
3
Roundtrip
8 miles
Gain
4,100 feet
First Ascent
T.M. Bannon - 1914
Mount Church from Donaldson Peak in Idaho's Lost River Range
#3
Mount Church from Donaldson Peak.

Mount Church

Mount Church, which still has not been officially measured or named, is the third highest peak in Idaho. It is unofficially named after the late Frank Church, an US Senator from Idaho, who was monumental in the development of wilderness areas in Idaho during the 1970's. The peak is usually climbed in conjunction with Donaldson Peak (#8).

Main Route: South ridge from saddle between it and Donaldson Peak.
Elevation
12,200+
County
Custer
Range
Lost River
Class
3
Roundtrip
9 miles
Gain
5,200 feet
First Ascent
Unknown
Diamond Peak in Idaho's Lemhi Range
#4

Diamond Peak

Diamond Peak is a monster peak found in the Lemhi range of Idaho. It is the highest Lemhi Range peak and highest in Butte County. Climbing it via the east ridge is short, but very steep in places. I rate it a hard class 3.

Main Route: East Ridge
Elevation
12,197
County
Butte
Range
Lemhi
Class
3
Roundtrip
5 miles
Gain
4,200 feet
First Ascent
T.M. Bannon - 1912
Mount Breitenbach in Idaho's Lost River Range
#5

Mount Breitenbach

Mount Breitenbach is a beautiful peak, named after Jake Breitenbach, an Idahoan who died on Mount Everest during the 1963 American expedition. Some views of the peak make it look like it belongs in the Himalaya.

Main Route: Up the Pete Creek drainage to the south ridge.
Elevation
12,140
County
Custer
Range
Lost River
Class
3
Roundtrip
7 miles
Gain
4,500 feet
First Ascent
Unknown
Lost River Mountain from the west in Idaho's Lost River Range
#6
Lost River's from the west.

Lost River Mountain

Lost River Mountain is probably the least known of the 9 12,000 footers. It is located south of Mount Breitenbach.

Main Route: Southwest "super" gully, then follow the south ridge. This gully is nasty, consider a spring/early summer snow climb.
Elevation
12,078
County
Custer
Range
Lost River
Class
3
Roundtrip
6 miles
Gain
4,500 feet
First Ascent
Unknown
Mount Idaho in Idaho's Lost River Range
#7
Photo courtesy of Dave Pahlas.

Mount Idaho

Mount Idaho provides the gorgeous backdrop for Merriam Lake. Getting to Merriam Lake is easy... getting to the trailhead is a long and dusty task.

Main Route: West ridge/face. Hike up Elkhorn Creek to a saddle at the base of the west ridge.
Elevation
12,065
County
Custer
Range
Lost River
Class
3
Roundtrip
8 miles
Gain
5,000 feet
First Ascent
Unknown
Donaldson Peak in Idaho's Lost River Range
#8

Donaldson Peak

Donaldson Peak is named after Idaho Supreme Court Justice Charles Donaldson. It is most often climbed from the saddle between it and Mount Church via its north ridge. Do this in conjunction with an ascent of Church.

Main Route: North ridge from saddle between it and Mount Church.
Elevation
12,023
County
Custer
Range
Lost River
Class
3
Roundtrip
.5 miles (if climbed in conjunction with Mount Church)
Gain
300 feet (if climbed in conjunction with Mount Church)
First Ascent
Unknown
Hyndman Peak in Idaho's Pioneer Range
#9
Hyndman from Big Basin Peak.

Hyndman Peak

Hyndman Peak is a very popular destination, as it is close to the resort area of Sun Valley. The route is also the easiest of all 9 peaks. Excellent views and terrain on this climb! Named after Major William Hyndman, a Civil War veteran and early prominent pioneer/mine operator in the region.

Main Route: East ridge from saddle between Hyndman Peak and Old Hyndman Peak.
Elevation
12,009
County
Blaine
Range
Pioneer
Class
2
Roundtrip
12 miles
Gain
5,009 feet
First Ascent
W.T. Griswold and E.T. Perkins - 1889