It reaches from Valpelline (960m), Oyace (1377m), Bionaz (1612m) Municipalities.
Northeast Side (From Valpelline-Arsines to Places Moulin Dam at the beginning of Valpelline Upper Valley)
1)- Minimum Route n° 1: from Valpelline-Semon (+; 1061m) to Chez la Ville Village, forks 1525, 1700 metres along Brison Torrent, Gay Alp (1721m), Arsines Alps (1703m; E; 2h '30/2h '40; source). Little Variant: from Valpelline to Fressionaz Dessous (1150m) Fraction, with Main Road to Ollomont; from this, path in East-Northeast, through Plan Coudray Wood, to fork 1440 metres and, path direct in North, to Arsines (E; 2h '15), below Pointe Sereina (2283m).
2)- Basic Itinerary n° 1: from Semon, Chez la Ville, with path in North, towards Bas Brison (1545m), Dzone Zoon (1695m) small Villages to Brison l'Arp (2195m; F+; 3h '15/3h '30), below Mont Berrio (3077m)/Punta Fiorio (3332m).
3)- Exceptional Route n° 1: from Semon, Brison l'Arp, crossing Brison Torrent in homonym Comba, to Brison or Breuson Pass (2194m; F+; 3h '45/4h '00), between Pointes d'Ollomont (2721m)/Mont Faceballa (+; 2516m); descent West possibility to Berrio Damon Alp (1982m) in Berrio Comba, above Ollomont (classic local crossing for inhabitants).
4)- Minimum Route n° 2 and Variant n° 1: from Oyace-Saint Michel Commune (1316m), with path in North, towards Sergnan (+; 1385m) Village, fork 1467 metres to dirt road, Peson Alpage (1661m; T; 1h '30/1h '40), neighbor Varère Torrent and below Pointe Fiorio (3332)/Mont Clapier (3427m)/Central Mont Morion (3505m) great mountain range.
Little Variant n° 1: from Saint Michel Fraction, with dirt road in Northeast towards Crétaz, Gallian, Sergnan (+; 1385m)/Chez les Bredy, Close (1457m) Villages to Peson Alp (T; 1h '20), near Varére Torrent and below Mont Morion.
by Gabriele Roth
5)- Minimum Route n° 3: from Oyace 1377m) or Bionaz (1612m), by Regional Road to Dzovenno Hamlet (1587-1599m); continue North on Municipal Road to Chez les Rey (1641m) and Ru or Ruz (Brook) Hamlets (1700m; great parking; fountain; toilettes). From this, with dirt road in North, before to Primo Pasture (1857m); after, crossing Moulin Torrent in windings road ( forks 2074m, 2087m), to Berrier various Alpages (2167m, 2187m, 2197m; source neighbor Vertsan Torrent; T/E; 2h '00/2h '15), below Mont de Crête Sèche (2941m)/Mont de Charmontane (2896m).
6)- Basic Itinerary n° 2 with Eastern Variants: from Dzovenno to Ruz Village (1700m) with Municipal Road; from this last towards Primo Pasture, through dirt road with old path-muletrack concomitant to alternative 1950 metres around. With path on wooded promontory directly in North-northwest to Berrio di Governo (Gouvernement isolated Boulder) and, through short diagonal North-northwest, to following Crête Sèche Refuge (2389; E/F; 2h '45/3h '00.
Eastern Variants: or with path more in East from a)- alternative 2074 metres on dirt road to fork (2249m; source into a slab); also from b)- Berrier Alps, with long diagonal path in West to source 2249 metres, Berrio di Governo, shelter.
7)- Exceptional Route n° 2: from Crête Sèche Refuge, in East along Crête Sèche Torrent and crossing the same in final part, to Franco Spataro Bivouac (2600m; 0h '45/1h '00), below Arolletta small Range; from this in North towards Plan de la Sabbla to Crête Sèche Pass (2897m; EE/F+; 1h '20/1h '40 from bivouac; 5h '00/6h '00 from Ruz Village).
8)- Variant n° 2: from a)- Crête Sèche Refuge, through path in North along thetorrent, also from b)- Spataro Bivouac, with small path in Plan de la Sabbla (Sand Tableland) and crossing the torrent in altitude around 2650/70 metres, with East direction towards Plateau de Crête Sèche in quota 2917 metres; progressively tourning South, through snowfields, debris, steep moraines in initial part and rotten blocks on terminal to Berlon Pass (3009m; M; 3h '15/3h '30 from shelter; 2h '30/2h '45 from bivouac), between Pic de Chardonney (3284m)/Mont Berlon (3132m).
9)- Basic Itinerary n° 3: from Bionaz to alternative 1703 metres, near Chez les Chenaux Village by Regional Road; from fork, through path in Northeast, to Chanlon Pasture (1951m). Continue decisively in North to La Tsa (2245m; source) and Marmottin (2338m) Alpages; through path always North reach Luseney (2489/95m) Alp, below Mont Charmontane (2894m)/Tsa Tower (3071m)/Marmottin Pass (2761m)/Mont de la Tsa (2738m) in a hemi circular range.
10)- Minimum Route n° 4: from Bionaz Municipality, with Regional Road, to Ferrère (1687m) small Village, alternative 1642 metres to Chami(e)n Hamlet (+; 1714m); from this, through dirt farms road towards fork 1984 metres and crossing on bridge Grand Chamin Torrent, to Grand Chamin Pastures (2010-2023m; source; E/F; 1h '30/1h '45).
11)- Basic Itinerary n° 4: from Chamin Village neighbor Déré le Melet Alpage (1690m), through dirt road in North, along the very old path (after the construnction of road, now in ruins completely covered with wild vegetation, altogether and fully abandoned) and easily crossing the Grand Chamin Torrent, to Grand Chamin Pasture (2010m; source 2023m); continue North towards Crottes Alp (2183-92m) up to the fork 2292 metres, below Berger de la Sassa (Rocky Shepherd above the walloon; 2772m). From this, tourning East-northeast, with small path before along the moraines neighbor torrent, after on edge of the same over the Sassa Torrent, through a more steep terminal part on lateral right (North) moraine of the Oriental Glacier, to Ceresa/Sassa Bivouac (2973; M+; 6h '15/6h '30; water source about 100 metres to Northeast), sited on a rocky promontory underlying the large glacial basin formed by Becca Labié (3463m)/Becca de la Sassa (3497m)/Pointe de la Bouetta (3540m)/Little Becca Blanchen (3591m)/Grand Becca Blanchen (3679m)/Sassa Pass (3256m)/Becca des Lacs (3470m)/Nez (Nose) Bovet (about 3330m)/Mont Rouge or Becca Bovet (3443m).
by Emilio Bertona aka emilius
12)- Variant n° 3: with Main Road to Places Moulin (1970/80m; parking under the front of great Dam); from this towards fork 2101 metres, path in North, towards Mea (2320m), Setive (2446m) to Plan Vauon (2578m) Alps; from this last, with path in East, to a)-Lakes du Mont Rouge and Têtes (2628m), below Punta Balliano (2791m)/Pointe Ollietti (2981m). Changing direction in Northeast, to Loch Long (2720m); also b)-from Plan Vauon Alp directly continue in North to the same last lake. From Lake Long, with short path in North, briefly to to Lac Mort (Death; 2843m; M+/D-; 3h '30/3h '45), in center of Basin of Lakes and below the semicircular range P. Balliano/Punta Ollietti/Pointe Marguerettaz (3146m)/Pointe Nourissat (3320m)/Becca Bovet of Mount Rouge (3443m)/Nez Bovet (3330m)/Becca des Lacs (3470m)/Aiguilles Rouges des Lacs (3460m)/Aiguille Blanche (3440m)/Pointe Gerlach (3003m) in Comba des Lacs.
13)- Basic Itinerary n° 5: from Places Moulin, through dirt road in North, towards forks 2075, 2101 metres, Grésime (2128m), Pessaou (2117m; source) small wooden footbridge 2116 metres on secondary torrent; from this point, with path, towards Low Orein Wood, Bas Orein (2140m) Alpages. (* Variant: also from parking, through lower path along North shore to Novailloz Alp nearby La Lé Chapel (+; 1988m) at the end of dam). Leaving East-southeast the path to Prarayer Refuge, continue in North towards Praz Modzon Damon (2153m), Grand Orein (2165m), Garda (2216m; source) Alpages to Grand Place (morainic tableland) reaching, over Orein Torrent, the little Orein Lake (2460m), under the same. Doubling West the promontory 2721 metres to fork 2510 metres and, path in Northeast along the Collon Torrent, to following rocky promontory with Nacamuli Refuge/Col Collon Bivouac (2828m, 2816m; D; 3h '30/4h '00).
South Side (from Prarayer Refuge-Bella Tsa Vallon to Becca of Roisan-Praperia small Basin)
14)- Basic Itinerary n° 6: from Places Moulin (1980m), with dirt route or through paths both in East and along Northern Shore of Dam, Prarayer Refuge (2005m; E/F; 2h '00/2h '15; source ) nearby Praz Raye Alp (2021m), Grand Plan Pasture (2027m), alternative 2067 metres (in North to Refuge Aosta), Gorge (2154m), Deré la Vieille (2254m) Alpages to Bella Tsa Alp (2474m; E/F+; 2h '30/3h '00), below Petites Murailles and Chateau des Dames Glaciers.
15)- Basic Itinerary n° 7: from Places Moulin towards Northern Shore of Dam, Prarayer Refuge, small bridge on Valpelline Buthier Torrent neighbor Praz Raye (2021m), Plan de l'Arp (1969m), Valconière Pasture (2170m; source), at the entrance of homonym vallon and with path along the torrent, to Chardonney Alp (2364m; EE/F+; 2h '45/3h '00), below Valcornière Pass (3075m)/Dome de Cian (3348m) and between Dome/Chavacour/Mont Redessau Glaciers.
16)- Variant n° 4: from Places Moulin parking towards Northern Shore of Dam to Prarayer Refuge at the end of the same; from shelter, through a small wooden bridge on Valpelline Buthier Torrent near and in East of Praz Raye (2021m) and towards Plan de Prie Wood, Plan de l'Arp (1969m), Mont Charvin Wood, above Southern shore of dam to Cote de Livourneaz, Lake (2375m) at the entrance of homonym vallon. Continue in South on walloon floor to Tsa (Upper) de Livourneaz Alp (2414m; EE/F+; 3h '45/4h '00), below Cima Livournea(z) (3286m)/Pass (2841m) and Glacier.
17)- Basic Itinerary n° 8: from Bionaz to Ferrère with Main Road; from this, through Municipal to Puillayes (+; 1622m). Towards l'Invers de Puillayes Wood, fork near Bachal Pasture (1899m), sorces 1930, 1974 metres, Arp Damon (2019m), near Forest Rangers Bivouac, along Montagnayes Torrent to Tsa de Couloz-Aquelou-Avoley Alps (2187m, 2382m; EE/F+; 3h '45/4h '15, below Montagnayes Pass (2903m)/Becca del Merlo (3297m)/Cima Franco Nebbia.
18)- Minimum Route n° 5: from Oyace-Close (1457m), towards Betendaz (1356m), small bridge on Valpelline Buthier Torrent, Primaz (1410m) to Clos Pastures (1525m; E/F; 3h '15/3h '45), at the entrance of Vessona(z) Comba.
19)- Basic Itinerary n° 9: from Oyace, before with Main Road to Close Pasture (1457m); after, through path Alta Via number 1 towards Betendaz (1356m), Primaz (1410m), Clos Pastures (1525m) to Arp Nouva (1791m) and Arp Vieille (1944m) Alpages. From this, through path along Vessonaz Torrent, to Ardamun Damon Alp (Upper; 2207m; EE/F+; 4h '15/4h '30), below Mont Pisonet (3207m)/Vessona Pass (2788m)/Mont Faroma (3070m), in high Comba Vessona.
20)- Minimum Route n° 6: from Oyace-Voisiral (1309m), Grenier, Vernoce Villages (1257m), Fontaine (1243m) to Verdona(z) Pastures (1617m E/F; 1h '15/1h '30), below Becca de Nona (2898m) and Little Becca of Nona (2842m).
21)- Basic Itinerary n° 10: from Voisiral, Grenier, Vernoce (1257m), Villages or little Fractions neighbor Oyace Commune (1377m), through short in asphalt Municipal Roads and path in South towards Fontaine, Verdona Pastures, Broiller Alp (1889m), unnamed alpage (2141m) and Tsavanne Alp (2165m) to Tsa de Verdona Alp (2317m E/F; 4h '30/5h '00), below Vamea Pass (2591m)/Gran Coutà (2862m)/Saint Barthélemy Hill (2646m) in Comba Verdona(z).
by Emilio Bertona
22)- Basic Itinerary n° 11: from Valpelline Center or from Les Ansermin-Gont, through Municipal Road, towards two small bridges 942, 999 metres to Montcorvé Village (1028m), cross 1100 metres, Verdzignolettaz (1379m; source), Chez-Charvin (1408m), Curtellet (1594m), Verdzignolaz (1952m) Pastures to unnamed alp (2056m; E/F; 4h '00/4h '30), below Arpeyssaou Pass (2492m; near Lière Bivouac 2423m; source)/Becca Conge (2957m)/Fouillou Hill (2437m).
23)- Basic Itinerary n° 12: from Valpelline-Prailles/Ville Grand Combin (965m), crossing the small bridge up Valpelline Buthier and through path, to Roncéaz Pasture (1095m), fork 1475 metres with dirt farms road from Grangette Dèsott, Planes (1512m), Verney (1730m), Arpisson (1838m), Porillon-Alpe-Neuve (2016m) to Pouillou Alpages (+; 2087-92m; E/F; 4h '00/4h '30), below Becca Novailloz or Noail (2587m)/Fouillou Hill/Senevé (2928m)/Tête d'Arpisson (2856m).
24)- Basic Itinerary n° 13: from Valpelline-Prailles/Ville Grand Combin, small bridge up Valpelline Buthier and through path, to Roncéaz Pasture, fork 1475 metres with dirt road, Planes, Verney, Chanté de Meye (1854m; source), crossing Arpisson, Val Freida and Gran Comba Walloons, to Rovon (1744m) Alpages, Prapéria(z) Alps (1737m; EE/F+; 3h '30/3h '45), below Becca di Roisan (2546m)/Becca di Blavy (2582m)/Becca di Viou (2856m) Southern watershed.
25)- Variant n° 5 with Minimum Route n° 8: from Valpelline-Prailles/Ville Grand Combin (965m), crossing the small bridge 942 metres up Valpelline Buthier and through path, to Roncéaz Pasture (1095m); from this in Southwest towards the Envers Wood, Grangette Dèsott (1427m), following fork to Grangette Damon, Billiouque Damon, Dèsott (1613m, 1557m; E; 2h '45/3h '15), crossing Billiouque Forest to Gran Comba, below Becca di Roisan Northwestern slopes.
26)- Minimum Route n° 7: from Roisan Commune-Crétaz (905m), through dirt road, to Champvillair (902m), winding road above Baravex (884m), Bérrio Némoz (1141m) Pastures to Blavy lttle Hamlet (+; 1471m; fountain; T/E; 2h'45/3h '15), below small range from Becca of Roisan/Becca of Blavy (2546 m)/Becca of Viou Western watershed.
27- Exceptional Route n° 3: from Praperia(z) Alp (***important and useful ENDORSEMENT can also be reached from the Village of Blavy (1475m) above the Communes of Roisan and Aosta via a detour from the farms dirt private road to the Alpages of Viou), with path into forest to Becca of Roisan and through moraines and blocks in more steep terminal part on Southwest Slope (EE/M+; 3h '20/3h '40 from ancient alpage; 4h '30/4h '40 from Blavy Village).