a) - a superior part that, starting from the Southern Slope of
Mont Mary (2.815m) which reaches about half the valley at about the height of the Alp
Rachou (1.612m), sited on the Eastern shore and now at the border with Cénevé Basin. This area looks like a large and rounded hump which is crossed at an altitude of
about 2.355/65 meters from a small path that leads to allow transit between the Pastures of Viou Superiore or Upper (West;
2.202m) and Sénevé (to the East;
2.199/2.206m); just above this level the vallon it is transformed into a real funnel turning down into a gorge rather narrow and not easily passable on the foot. The holding sides of the latter are formed in the West by a large wooded buttress-rocky, with trend Southwest, that from the valley floor, near St. Christophe Quart Commons, floor goes up to Mary; Southeast toward the opposite is constituted by a parallel which is reached from the forests of Comba's Sénevé. Both are turning towards the inside with steep slopes, landslides and also very unwise.
b) - A deep, narrow valley, shaped funnel-hourglass, separates this from a second and lower part that, after a sinuous form, grows ever more downward splitting into small valleys that reach the paved road at the junction called as the
"Montagne". On top of this, and on a promontory
"stands" the little Village of
Cérisolaz (1.159m), reached from the Southwest with a private farm dirt road that begins
1.105 meters from the junction of the road asphalt for Parléaz-Blavy. This, in being completely renovated and equipped with beautiful stone fountain and a beautiful votive Chapel, is located on the edge of a rocky gorge that separates it from that of Cretallaz
(1.087m), now in the Municipality of Quart. More higher on the Western side is located the Pasture
Valtolanaz (1.492m) at the Teppes Plan always reached by a private road that begins just below the Village Parléaz
(1.274m) through the same, and here comes a small path
not numbered starting from Veynes Fraction
(805m). All other paths have decayed over time,
"killed" by both asphalt roads that the dirt roads even if something is left starting from the locations below of Sorreley
(805m), Champapon, Ollignan, Cort
(810m) and
Valenzana with his beautiful Monastery towards
Valcorneille (1.014m), Lumian Cretallaz, where the hill expands towards the Common of Quart. The other paths have to invent it, although you have to pay attention to the choices to be made. Especially in the valley that, from the outlet of the water just above Cérisolaz, dates back to the Mont Mary.
An attractive route is instead the one that runs completely on its South Buttress dominating in the higher part this vallon more than wild and lonely. Starting from the bottom neighboring the Côte de Senin and the Côte de Sorreley or inserting on the same from Valcomeille towards
Plan Teppes (1.547m) and subsequent elevations in
1.700, 1.996, 2.274, 2.422 meters. The same goes for the opposite side or the Southeast that departing from
Cretallaz Hamlet locality Champ Ferrioux, after crossing the Torrent de Roveyrettaz, reaches the isolated Pasture of
Rachaou and the subsequent tranches of
1.764, 2.183, 2.362 and 2.465 meters. Wild trails that require good knowledge of the area or at least the ability to know how to juggle into the same. Anyway total ban to will converge with a exposed descent into the deep and rocky valley, if not to the point
2.362 meters at the junction with the trail between Upper Alp Viou and to Sénevé into homonym basin. It is actually paths used by hunters very experienced or skilled hikers and requiring orientation ability and good training, because really very long and tiring. On the other hand there is the satisfaction of moving in very integral territories and formed from a primordial nature that forces continue to operate small choices to overcome problematic situations, that continually and inevitably arise with the progress upwardly. Finally beautiful glances in the bottom above the City of Aosta and marvelous views on the entire group of Mount Emilius
(3.559m), which stands right in front of so imperious.
Un valloncello selvaggio e senza nome? Si. Poiché quello che scende dal versante Meridionale del Mont Mary (2.815 m) é un vallone veramente tanto selvaggio quanto atipico poiché non presenta sentieri o percorsi apparentemente percorribili. Solo la parte medio-inferiore nonché le sue sponde Orientali ed Occidentali presentano un segno di accessibilità, mentre nella parte superiore scende veramente come un vallone abbandonato sia da Dio che dagli uomini. In effetti questo ripido vallone roccioso risulta come un trait d'union tra il Bacino di Viou-Parléaz ad Occidente e la Comba di Senevè ad Oriente, questi ultimi due ben più conosciuti e frequentati. Anzi nella parte più elevata vanno a congiungersi "partorendo" subito sotto questo vallone, che scende lasciando sui lati gli Alpeggi isolati di Rachaou (ad Est; 1.612 m) e Valtolanaz (ad Ovest; 1.492 m) raggiungendo più in basso i Villaggetti di Cérisolaz e Valcorneille (1.159 m, 1.014m); appena al di sopra della Côte de Sorreley ed il bivio 1.025 metri presso Lumian (984 m) dove la strada in asfalto presenta un importante sdoppiamento. Infatti da questo bivio (cartello Montagne) il ramo di destra prosegue ai Villaggi di Cretallaz, Jeanceyaz, Morgonaz e Praillon alle porte della Comba di Senevé o Cénevé mentre l'opposto si indirizza verso i Villaggi di Parléaz o Parleyaz e Blavy nell'omonimo bacino sotto la Becca di Viou (2.856 m).