Gannitt Peak Wind River Range2

Gan­nett Peak

Overview

Gan­nett Peak is remote­ly locat­ed in the north­ern Wind Riv­er Moun­tain Range, sit­u­at­ed on the Con­ti­nen­tal Divide Nation­al Scenic Trail in both the Fitz­patrick and Bridger Wilder­ness Areas. A for­mi­da­ble moun­tain in itself, Gan­nett Peak is only accessed after endur­ing hikes at high alti­tudes and moun­tain pass­es, glac­i­er and rock trav­el, and finicky, poten­tial­ly dan­ger­ous, weath­er pat­terns. The 896 acre Gan­nett Glac­i­er is the largest sin­gle glac­i­er in the Amer­i­can Rocky Mountains.

Popular Activities

Climber on Gannett Peak Wind River Range Pinedale WY

WYOMING’S HIGH­EST MOUNTAIN
AT 13,804 FEET

Gan­nett Peak is thought amongst moun­taineers to be one of the most dif­fi­cult state high-point sum­mits in the nation, and climb­ing it is one of America’s pre­mier wilder­ness moun­taineer­ing trips.

Climber on the Summit of Gannett Peak Wind River Range

CAMP­ING NEAR GAN­NETT PEAK

There are no suit­able camp­ing areas on the peak itself, so be pre­pared for a long day in and out (20-hour day) hik­ing part of the trip on snow and glac­i­ers. It is NOT rec­om­mend­ed or safe to camp on glac­i­ers, so suit­able base­camps are approx­i­mate­ly 3000’ below the peak sum­mit. Gan­nett is the longest round trip approach of any state high-point in the nation.

Camp­site loca­tions are rather sparse near Tit­comb Basin, and pri­va­cy is min­i­mal due to the alpine set­ting. Bears are plen­ti­ful in this area and campers are required to keep a clean camp and store food away from bears and oth­er ani­mals. Bear-proof portable food stor­age con­tain­ers are avail­able for loan at the Pinedale Ranger Dis­trict and the Great Out­door Shop in Pinedale for a small fee.

Mammoth Glacier viewed From Gannett Peak Wind River Range

CLIMB­ING GAN­NETT PEAK

Gan­nett Peak is acces­si­ble from sev­er­al routes. From Elkhart Park trail­head near Pinedale, the route of approach usu­al­ly goes past Seneca and Island Lakes to the head of the Tit­comb Basin. Depend­ing on the over­all length of the trip, train­ing require­ments, and whether horse pack­ers have been used or not, it will take you 1 to 4 days to reach the upper Tit­comb Lake. Weath­er, con­di­tion­ing, tim­ing, and oth­er vari­ables may deter­mine the exact loca­tion of the sum­mit camp. Start ear­ly on sum­mit day to reach the top in the morn­ing hours before storms move in and return to camp before dark. The most pop­u­lar route up Gan­nett is Goose­neck Glacier. 

All approach­es are tech­ni­cal and entail cross­ing glac­i­ers, snow climb­ing, and rock scram­bling. Approach­es from the Green Riv­er Lakes or New Fork Lake trail­heads on the west side of the Wind Riv­er Range are longer than the tra­di­tion­al approach routes but pro­vide more soli­tude. Access to Gan­nett Peak is also pos­si­ble from the Dubois side, with the Glac­i­er Trail being the main and most pop­u­lar trail. If access­ing Gan­nett via the more scenic Tit­comb Basin, expect to see oth­er back­pack­ers, climbers, and folks with livestock.

It is impor­tant to plan for addi­tion­al time to become accli­mat­ed to the high ele­va­tion, to be phys­i­cal­ly fit for the stren­u­ous hike and climb, and knowl­edge­able about equip­ment and tech­niques for safe­ty. Typ­i­cal con­di­tions on Gan­nett Peak require a boot stur­dy enough for glac­i­er cram­pons and stiff enough for snow climb­ing. Plas­tic moun­taineer­ing boots are not nec­es­sary; a mid-weight leather or water­proof fab­ric boot is ade­quate. Ice axes and cram­pons should be of good qual­i­ty and the cor­rect size, and each par­ty mem­ber should be aware of how to safe­ly use them, includ­ing in a self-arrest sit­u­a­tion. Most peo­ple rope up. 

It is com­mon for sum­mit par­ties to plan a week for the approach to Gan­nett, the ascent, and delays due to bad weath­er days. Be pre­pared for dras­tic, unex­pect­ed weath­er con­di­tions, includ­ing snow­fall any day of the year. Sum­mer days typ­i­cal­ly come with after­noon thun­der­storms and dan­ger­ous light­ning. Before head­ing out, get cur­rent trail con­di­tions and advi­sories for the area. The hike is over 45 miles roundtrip and an almost 9,000-foot ver­ti­cal climb. The best climb­ing months are late June, July, August, and ear­ly Sep­tem­ber. Con­di­tions vary from sea­son to sea­son, so check ahead of time to know what to expect. Novices and new­com­ers are advised to hire guides to lead them through any trip.

CON­DI­TION OF GLACIERS

Over the past years, climbers report that the Goose­neck Route has changed dra­mat­i­cal­ly due to reced­ing and melt­ing glac­i­ers. The bergschrund is also becom­ing a more com­plex obsta­cle to over­come. It is rec­om­mend­ed that groups attempt­ing to climb this peak go ear­ly in the sea­son so that snow bridges are in bet­ter con­di­tion for trav­el­ing. Check on con­di­tions reg­u­lar­ly, as snow­fall can be incon­sis­tent from sea­son to season.

LOCA­TION

Gan­nett Peak is most often approached Elkhart Park Trail­head out of Pinedale or from the north via Dubois, WY.

LOGIS­TICS

GLAC­I­ERS

Gan­nett Peak has five rugged glac­i­ers on its flank, the largest glac­i­ers in the Amer­i­can Rocky Moun­tains. It is remote and con­sid­ered an alpine moun­taineer­ing chal­lenge due to its inac­ces­si­bil­i­ty and dif­fi­cul­ty. The moun­tain was first climbed in 1922.

EXPE­RI­ENCE

This trip is best tack­led by strong and expe­ri­enced climbers with great sta­mi­na, who are well-accli­mat­ed to high ele­va­tions. The trip includes tra­vers­ing glac­i­ers that con­tain deep crevass­es that can lay hid­den under a coat of shal­low snow. Ropes, cram­pons, ice axes, and both knowl­edge and under­stand­ing of prop­er usage are essen­tial. Fur­ther­more, the stren­u­ous 20+ mile trail approach adds to the endeavor.

Gannitt Peak Wind River Range2

BEFORE YOU GO

GAN­NETT PEAK ADVICE

Be aware that this is extremely remote country, and potential dangers are part of the wilderness experience. You must be prepared to take care of yourself in case of an accident. Cellular phone service is not available and medical and rescue teams are very far away. It is wise to ravel with at least one other person and log a travel plan with a friend on where you are going and when you will return. Know basic first aid and carry a first aid kit. The most common dangers in the high reaches of the Bridger Wilderness are high altitude sickness, hypothermia, and dehydration.

TYP­I­CAL WEATH­ER CONDITIONS

Summer days are typically warm and dry during the day, (70s-80s) with late-day thunderstorms with rain. Sub-freezing nighttime temperatures are common. Be prepared for high winds and rapidly changing weather conditions. Mountain snowstorms can occur any day of the year. Adequate clothing and camping equipment are essential, along with sunscreen, mosquito repellent, and a water filter or water treatment.