Mount Sill

{{Short description|Mountain of the Sierra Nevada in California, United States}}

{{Use mdy dates|date=January 2025}}

{{Infobox mountain

| name = Mount Sill

| photo = Mount_Sill_cropped.jpg

| photo_caption = Climbers on the snow field below Mount Sill, July 2006.

| elevation_ft = 14159

| elevation_ref = {{NAVD88}}{{cite peakbagger |pid=2726 |name=Mount Sill, California |accessdate=2009-02-09}}

| prominence_ft = 353

| prominence_ref =

| parent_peak = North Palisade{{cite peakbagger |kid=2726 |name=Key Col for Mount Sill |accessdate=2016-03-23}}

| listing = {{unbulleted list|

|California fourteeners 6th{{cite peakbagger |lid=21319 |title=California 14,000-foot Peaks |accessdate=2016-03-23}}

| Sierra Peaks Section Mountaineers peak{{cite sps |accessdate=2009-02-09}}

| Western States Climbers Star peak{{cite wsc |accessdate=2016-03-24}} }}

| map = California

| map_caption = California

| map_size = 220

| location = Fresno and Inyo counties, California, U.S.

| range = Sierra Nevada

| coordinates = {{coord|37.0960543|N|118.5035056|W|type:mountain_region:US-CA_scale:100000_source:GNIS|format=dms|display=inline,title}}

| range_coordinates =

| coordinates_ref = {{cite gnis |id=1654943 |name=Mount Sill |accessdate=2009-02-09}}

| topo = USGS North Palisade

| first_ascent = July 24, 1903 by James S. Hutchinson, Joseph N. LeConte, James Moffitt, Robert Pike

{{cite Roper |page=349}}

| easiest_route = Glacier climb & rock scramble

}}

Mount Sill is one of the fourteeners of the Sierra Nevada in California. It is located in the Palisades, a group of prominent rock peaks with a few small glaciers on their flanks. Mount Sill is located 0.6 miles (1 km) east of North Palisade, the high point of the group. The two peaks are connected by a high, rocky ridge, on the north side of which lies the Palisade Glacier. Mount Sill lies on the main Sierra Crest, but is at a point where the crest turns sharply, giving it particularly striking summit views. On one side is Kings Canyon National Park and Fresno County; on the other is the John Muir Wilderness, Inyo National Forest and Inyo County.

Routes on Mount Sill are found on all sides of the peak and range in difficulty from scrambles ({{YDS|2-3}}) to a moderately technical rock climbs (class 5.7).{{cite Secor |edition=3 |pages-245–247}}

The mountain is called Nen-i-mish ("the Guardian of the Valley") by the Indigenous Northern Paiute people. Its English name was coined, in 1904, by Joseph LeConte, a noted mountaineer, in honor of American poet Edward Rowland Sill.{{cite Farquhar |index=S |accessdate=2009-02-09}}