The Lys (

Walser German Walser German (german: Walserdeutsch) and Walliser German (, locally ) are a group of Highest Alemannic dialects spoken in parts of Switzerland (Valais, Ticino, Grisons), Italy (Piedmont, Aosta Valley), Liechtenstein (Triesenberg, Planken), and ...

: ''Liisu'' or ''Lyesu'') is a small river (classified as a '' torrente'').

Geography

It flows from the Lys Glacier on the south side of the

Monte Rosa : , other_name = Monte Rosa massif , translation = Mount Rose , photo = Dufourspitze (Monte Rosa) and Monte Rosa Glacier as seen from Gornergrat, Wallis, Switzerland, 2012 August.jpg , photo_caption = Central Mon ...

massif, at the foot of Vincent Pyramid, elevation , and runs through the Gressoney Valley, flanked by a road, through the following municipalities: *

Gressoney-La-Trinité Gressoney-La-Trinité (Gressoney wae, Greschòney Drifaltigkeit or ; frp, Gressonèy-La-Trinità) is a town or '' commune'' and renowned alpine resort at the foot of Monte Rosa in the Val de Gressoney, which is part of the Aosta Valley region of ...

Gressoney-Saint-Jean Gressoney-Saint-Jean (Gressoney wae, Greschòney Zer Chilchu; frp, Gressonèy-Sèn-Dzan; german: Kressenau Sankt Johann) is a town and ''comune'' in the Aosta Valley region of north-western Italy. Geography The town is situated in a valley forme ...

* Gaby *

Issime Issime ( Issime wae, Éischeme; german: Einsimmen; Valdôtain: (locally )Obsolete. Recent works in German indicate the official French name only - cfLiederbuch von Gressoney und Issime and Peter Zürrer, ''Sprachkontakt in Walser Dialekten: Gre ...

Fontainemore Fontainemore ( Valdôtain: ; Issime wae, Pischu; from 1939 to 1946) is a town and ''comune'' in the Aosta Valley region of north-western Italy. Toponym The toponym "Fontainemore" may derive from an old fountain called in French French (fren ...

Lillianes Lillianes ( Valdôtain: ; Issime wae, Elljini) is a town and ''comune'' in the Aosta Valley region of north-western Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. ...

Perloz Perloz ( Valdôtain: ) is a town and '' comune'' in the Aosta Valley , Valdostan or Valdotainian it, Valdostano (man) it, Valdostana (woman)french: Valdôtain (man)french: Valdôtaine (woman) , population_note = , population_blank1_ti ...

It converges with the

Dora Baltea Dora Baltea () or Doire Baltée () is a river in northwestern Italy. It is a left-hand tributary of the Po and is about long. Name The river's Latin name was ''Duria maior'', ''Duria Baltica'' or ''Duria Bautica''. Strabo called it Δουρ� ...

(fr. ''Doire baltée'') as a right tributary at Pont-Saint-Martin. Its left-side tributaries are Avant-Cir, Glassit, Loo, Mos, Niel, Pacoulla, and Tourrison. From the right it receives: Rû de Nantay, Stolen and Valbona.

Gallery

Lys river springs.jpg, The sources of the Lys at the Lys glacier in the

mountain massif, below the Vincent Pyramid and close to the giant

Lyskamm Lyskamm (german: Liskamm, formerly ''Lyskamm'', literally "comb of the Lys"), also known as Silberbast (literally "silver bast"), is a mountain () in the Pennine Alps lying on the border between Switzerland and Italy. It consists of a five-kilo ...

(4.533 m) Lys vicino a Gaby.jpg, The river close to Gaby in the

Aosta Valley , Valdostan or Valdotainian it, Valdostano (man) it, Valdostana (woman)french: Valdôtain (man)french: Valdôtaine (woman) , population_note = , population_blank1_title = Official languages , population_blank1 = Italian French ...

Pont-Saint-Martin-Ponte-DSCF8380.JPG, The Roman bridge of Pont-Saint-Martin Fontainemore_veduta.jpg, In

Rivers of Aosta Valley Rivers of Italy Rivers of the Alps {{Italy-river-stub