On August 1787 he assisted de Saussure himself to reach the summit with a party of about 17 people .
After the successful ascent , Balmat collected the reward offered 25 years before to the first man who could climb Mont Blanc .
On August 1787 Balmat assisted de Saussure himself to reach the summit with a party of about 17 people .
After the successful ascent , Balmat collected the reward offered 25 years before to the first man who could climb Mont Blanc .