Allalinhorn

{{short description|Mountain in Switzerland}}

{{Infobox mountain

| name = Allalinhorn

| photo = Allalin.jpg

| photo_size = 285

| photo_caption = The Allalinhorn and restaurant on Mittelallalin, in August

| elevation_m = 4,027

| elevation_ref =

| prominence_m = 257

| prominence_ref= Retrieved from the Swisstopo topographic maps. The key col is the Alphubeljoch (3,770 m).

| parent_peak = Dom

| map = Switzerland

| range_coordinates =

| map_caption = Location in Switzerland

| location = Valais, Switzerland

| range = Pennine Alps

| coordinates = {{coord|46|02|46.1|N|7|53|41.3|E|type:mountain_region:CH-VS_scale:100000|format=dms|display=inline,title}}

| coordinates_ref =

| topo =

| type =

| age =

| first_ascent = 28 August 1856 by Edward Levi Ames, a member of the Imseng family and Franz-Josef Andenmatten

| easiest_route = North-west ridge (PD); a snow climb

}}

The Allalinhorn ({{convert|4,027|m|abbr=on}}) is a mountain in the Pennine Alps in Switzerland. It lies between Zermatt and Saas-Fee in the canton of Valais, and is part of the Mischabel range, which culminates at the Dom (4,545 m).

It was first climbed by London barrister Edward Levi Ames, a member of the Imseng family and Franz-Josef Andenmatten on 28 August 1856.{{cite book |first=Edward Levi |last=Ames |chapter=VIII: Ascents of the Fletsch-Horn and Alleleinhorn |editor-first=John |editor-last=Ball| title=Peaks, Passes and Glaciers, A Series of Excursions by Members of the Alpine Club |publisher=Longman, Green, Longman, & Roberts |location=London |date=1860 |url=https://archive.org/details/peakspassesandg00englgoog}}

The building of the Metro Alpin funicular to the Mittelallalin (3456 m) just below the north-east face has turned the mountain into one of the easiest and popular 4000-metre peaks of the Alps,{{cite peakware|id=330|name=Allalinhorn|accessdate=2010-02-08}} when climbed by the standard route (WNW Ridge, difficulty Grade F). On the normal route, climbers can ride up to the Mittelallalin; from there, there are only about 500 vertical metres to tackle. However, even the 'easiest' route still has objective dangers from crevasses and should not be attempted by inexperienced mountaineers without a mountain guide or adequate crevasse rescue training.