The other source is the twenty-first book of the History of Rome from its Foundation, written by Polybius' Roman colleague Titus Livius of Padua, better known to English readers as Livy (59 BCE-17 CE). He suggests a more southerly route.
www.livius.org/ha-hd/hannibal/alps.html
On the other hand, there are striking differences: e.g., Polybius of Megalopolis states that Hannibal's soldiers could see Italy from the pass, and Titus Livy writes that they saw Italy only after they had started the descent. ... frequently a wrong route was taken - sometimes through the deliberate deception of the guides,
www.livius.org/ha-hd/hannibal/alps_text.html
eyes to such statements as the one of Livy that Hannibal's route took him across the Durance,7 or of Polybius that he entered the ...
www.jstor.org/stable/3289154
THE question of Hannibal's route through the Alps depends in part upon the interpretation of Polybius III. 47-50, and of Livy XXI., 3I and 32. l gave ...
www.jstor.org/stable/700914
In the passage of Livy just cited Pupinia is thought of as lying north of the Anio ... of scholars about the accuracy of Livy's account of Hannibal's route. ...
penelope.uchicago.edu/Thayer/E/Roman/Texts/secondary/jo... penelope.uchicago.edu/Thayer/E/Roman/Texts/secondary/journals/AJP/51/1/Tribus_Pupinia*.html
The senate were intensely indignant at the consul's having dared to take so much upon him as to abandon his own province and trespass upon that of another, leading his army by an unknown and perilous route through strange tribes, and opening up the way for so many nations into Italy.
mcadams.posc.mu.edu/txt/ah/Livy/Livy43.html mcadams.posc.mu.edu/txt/ah/Livy/Livy43.html
There were two routes into Etruria, both of which were pointed out to Hannibal; one was considerably longer than the other but a much better road, the shorter route, which he decided to take, passed through the marshes of the Arno, which was at the time in higher flood than usual.
mcadams.posc.mu.edu/txt/ah/Livy/Livy22.html mcadams.posc.mu.edu/txt/ah/Livy/Livy22.html
There are big problems with Livy. He lived a century and a half after Hannibal’s war. Polybius had interviewed eye witnesses and traveled Hannibal’s route, but Livy did not even attempt any such research. Instead, he merrily plagiarized Polybius (and mentions him only once, by my count).
andreaskluth.org/2008/10/25/livy/ andreaskluth.org/2008/10/25/livy/
Livy; Translated by J.C. Yardley; Edited by Dexter Hoyos ... The edition includes a glossary of Roman and Carthaginian terms, a chronological table, an index, a series of detailed maps, and a discussion of the route of Hannibal from the south of Spain over the Alps to Italy.
www.oup.com/us/catalog/general/subject/ClassicalStudies... www.oup.com/us/catalog/general/subject/ClassicalStudies/AncientHistory/Roman/?view=usa&ci=9780199555970
Livy's great history of Rome contains, in Books 21 to 30, the definitive ancient account of Hannibal ... The edition includes a glossary of Roman and Carthaginian terms, a chronological table, an index, a series of detailed maps, and a discussion of the route of Hannibal from the south of Spain over the Alps to Italy.
search.barnesandnoble.com/Hannibals-War/Livy/e/97801928... search.barnesandnoble.com/Hannibals-War/Livy/e/9780192831590/