Monte Viso is mentioned by various authors, Italian and non-, including Dante, Petrarch, and Chaucer.
 Dante mentions the mountain in a long simile in Canto XVI of the Inferno as the source of the Montone River:
Come quel fiume c'ha proprio cammino
	
prima dal Monte Viso 'nver' levante,
	
da la sinistra costa d'Apennino
Chaucer cites the mountain in the prologue to the Clerk's Tale in his Canterbury Tales, in a passage adapted from Petrarch's Latin version of his "Tale of Griselda":
A prohemie, in which discryveth he,
Pemond, and of Saluces the contree,
And speketh of Appenyn, the hilles hye,
That been the boundes of West Lumbardye,
And of Mount Vesulus in special,
Wher as the Poo out of a welle smal,
Taketh his first spryngyng and his cours
That eastward ay encresseth in his cours
To Emele-ward, to Ferare and Venyse;
The which a long thyng were to devyse.

(Geoffrey Chaucer, "The Clerk's Tale," from The Canterbury Tales)
Monte Viso is mentioned by various authors, Italian and non-, including Dante, Petrarch, and Chaucer.  Dante mentions the mountain in a long simile in Canto XVI of the Inferno as the source of the Montone River:
Come quel fiume c'ha proprio cammino
	
prima dal Monte Viso 'nver' levante,
	
da la sinistra costa d'Apennino
Chaucer cites the mountain in the prologue to the Clerk's Tale in his Canterbury Tales, in a passage adapted from Petrarch's Latin version of his "Tale of Griselda":
A prohemie, in which discryveth he,
Pemond, and of Saluces the contree,
And speketh of Appenyn, the hilles hye,
That been the boundes of West Lumbardye,
And of Mount Vesulus in special,
Wher as the Poo out of a welle smal,
Taketh his first spryngyng and his cours
That eastward ay encresseth in his cours
To Emele-ward, to Ferare and Venyse;
The which a long thyng were to devyse. 
(Geoffrey Chaucer, "The Clerk's Tale," from The Canterbury Tales)
Monte Viso