(For the approaches see "The Lakes" & "Where do we go fishing?" ... but the way is almost unique)
1)- : Mont Palon (2594m); various paths on South-southwestern Slopes from Lake Literan. Ascent through boring grassy slopes with short crossing on small rocks which require a final bit of caution when wet or in snow (E/F; 1h '45/2h '00 from the loch or, lower, from private road).
Variant: those wishing to avoid spreading around the Northwest to the Lake Literan, you can get more directly from the Estoul Walloon: from the junction 1993 metres on the dirt farms road before Chanlochère Pasture crossing the path base into Estoul Bois (Wood) de Moucheroulaz to the Estoul Lakes until the next crossing 2177 metres: here, going on traces up to an altitude of about 2300 metres, there is a secondary path diagonally to the beautiful Alp Literan (2776m) just above the lake, where there is a link to the previous route (EE/F; a quarter of an hour less).
2)- : Mont Bieteron (+; 2763m). Through the a)- Southwest Slope of Mont Palon from Literan Lake and crossing through South-southwestern Slopes. From big shoulder down through the rocks easy but exposed a short distance; then continue by flexing just to the North-northeast and through a small track, which often gets lost between the grassy slopes, with some small rock (sometimes delicate passages of I°) to reach the Summit (EE/F+; 2h '50/3h '10 from the lake or, more in bottom, from dirt road). This side can be climbed as Ski-Mountaineering or Snowshoes.
Note: you absolutely can not draw down the grassy slopes of the East-Northeast Slope to the Lakes Estoul, Chamen, because really treacherous and dangerous, even in snow absence but covered grass as "Olline", very slippery. There is to be noted that, while the uphill path is "acceptable", downhill, especially with wet grass, it is really "lazy" (personal exp.); should return to Palòn and navigate to the Northeast to the Lakes Estoul.
Or through the b)- indented North Crest from small saddle (2681m); in this regard see the various remarks made about the underlying Valdònierhòre, as well as the above picture where the profile of the ridge against the sky is taken from the West side or from the Vallon Palasina.
3)- : Valnera Summit or Valdònierhòre (+; 2754/6m). Through the a)- Southwest short Crest from little saddle 2681 metres, reached with path and traces in Northwest from Estoul and Chamen Lochs (F/F+; 0h '50/1h '10 from the both or 3h '00/3h '15 from the parking of Resort).
Also b)- can be reached with an "acrobatic" and complete crossing in descent from Mont Bieteron (see Jags), probably traveled only once or twice, but for which there is a relationship. Surely this small hilltop, but important node topography, it is more easily accessible via this side, ie from Lakes Estoul and Chamen into homonymous vallon Probably this ascension is still waiting to be carried uphill (E/F; 1h '10/1h '20 by both lochs).
4)- : Mont Ciosé or Chose or Tiosé also Staller Horn Northern Summit (2662m). The first Summit of the semi circular following order of description (but actually the third and last starting from Ranzola) and the Northern that is, among the three, even the highest, then the true Top of Staller Horn (by Gressoney inhabitants), although that is certainly the most popular South (from information on the spot always very scarce transits). After a sharp carving 2643 metres rises culminating in a triangular shape. The report cited (see following Summit Central) specifies the technical sequence of difficulties, it is not as clear-cut distinction in the same three summits. Following the same and relying on new maps (L'Escursionista "Val d'Ayas Val di Gressoney Monte Rosa", 1:25.000 of the year 2007) summarized thus: the collar between the Central and Northern Summit is almost faithfully follows the ridge beyond the Summit 2680 metres (2662 metres on the Map) and the subsequent Northern Antesummit; down to avoid a wall about 60 metres leans first on the left (West) and then right over a ledge. Then continuing in a linear manner to 10 metres through a groove facing to the right (Northeast) reaches a notch (II°/I°), after which continue over a stretch jagged reaches another great tower; it wanders right into a steep grassy slope and through a couloir and rocks in final part, you reach a second. Get off at the next carving, the smaller of the entire ridge, through a terminal wall about 10 metres vertical (III°) and with a slight slope to get to the Bocchetta Pass (2526m; for the local inhabitants Bocchetta of Eclou). The above Map marks in succession these quotas altitude: 2643m, 2662m, 2631m, 2537m, 2555m and 2522 metres to the carving; we leave the task to a few young. (A; 1h '15/1h '30 from Central to Bocchetta of Eclou; 4h '00/4h '30 combined with very long traverse coming from Ranzola Hill; 8h '00/8h '30 from Estoul parking, round/trip). Crossing technically not difficult but it requires good experience and research capacity of the via. This Summit is a little secluded and, once achieved, it must necessarily go down to the "Little Nozzle" of Eclou, otherwise (see next point) to go back to the collar with the Central Summit and get off this Westward to vallon floor.
5)- : Mont Ciosé Central Summit (2638m). For this part of the ridge, like the previous one, not having personally done the same, you should use the report appeared on pages 298/9 Guidebook of the C.A.I./T.C.I. "Monte Rosa" by Gino Buscaini, as private information received from the same by Alessandro Gogna, author of the first crossing in direction South/North August 14th, 1982. We describe the crossing of the Central Summit from South to North: from the South Summit still continue to the West-northwest with a slight descent to following altitude reaching the next grassy saddle (2571m; a passage of II°-); from this ridge is addressed decisively towards the North and avoided Southwest a first gendarme with drop of about 20 metres (I°; after this climb the ridge via a small gully of debris) on the Southwest ridge, cross in succession the Quotas of altitude 2586m, 2583m, 2609m (one step III°- on the second gendarme and climb the next great tower). With some workarounds to the right (East) prevents a pointed third spire reaching the next notch (EE/A; 1h '00 from Southern Summit; 2h '45/3h '15 from Ranzola; EE/A; 6h '30/7h '00 from Estoul, round/trip). You can probably go down to the West (see photo Overview) into large channel between Central/North Tips.
6)- : Mont Ciosé Southern Summit (2647m). From Estoul parking with private dirt farms road in East towards Fenilliettaz little Village (1840m), alternative 1850 metres to Upper Fenillettaz and Fontaine Pastures, cross to Moucheroulaz Alpage (1871m; signal no transit), Murassaz (1883m), Praz Barmasse Désott Pastures (1928m; signal no transit to Ranzola Hill), Alp Fenêtre (2057m, 2083m) to pass. From Ranzola Hill also Arescoll (2171m), leaving right the vroutes to Gressoney Valley and to Punta della Regina (Queen Summit), continue in North on South-southeast Crest; reach before, through a steep grassy slopes, a partially rocky promontory 2401 metres, the following small saddle 2382 metres and the subsequent altitude 2403 metres. Climbing, through rotten and broken rocks with grassy, just on left and below the thread of ridge to Quotes 2473m, 2559m; 2621m. From this point the ridge splits into two: one branch goes to the East-northeast, forming a "crestone" above the Staller Walloon, while another continues more to the Northwest in the direction of the Southern Summit. Get off ten metres to one notch (I+°/II°-; a short passage delicate and very exposed in the presence of ice) and continue on the ridge with easy climbing sections and walkable; bypassed a final roughness 2629 meters , in drinking to reach the Southern Top. (2647m; EE/A; 1h '20/1h '35 from Ranzola Hill; 3h '30/4h '00 from Estoul parking; 6/7h '00 round/trip always Estoul). It can also be done as a day trip Ski-Mountaineering (you should leave your skis at Col Ranzola or on the promontory immediately above) or with Snowshoeing. By making this choice to leave the equipment must you have to go through this route.
Descent Variant: to gain time and especially in the winter with the snow is transformed, it should make the descent from the Southern Summit directly to the South-southwest in the direction of the dirt road between the Alpages Praz Barmasse Damon (2038m) and Fenêtre; in this case, leaving immediately to the right (West) the profile of a small rocky outcrop, descend into a small and wild walloon amongst debris interspersed with large blocks grass and bushes. Do not deal with this descent in deep snow or non-transformed and then springs, but fall through the ridge used uphill. This option makes sure to save time, but is quite boring and not at all profitable. You can not have everything making your choice!