From March 1896 to May 1897 he stayed with native tribes in Patagonia, and later wrote a book about this experience.

[1] On Oct 9, 1900 he and a companion set a distance record in a balloon traveling 1200 miles from Vincennes to Korostyshiv near Kiev (Now Ukraine, then in Russia) in 35.75 hours.

[2][3][user-generated source][4] Also in 1900 he received the Grand Medal of the Aero Club of France for exceptional contributions to the progress of aviation.

[5] The FAI now awards the De la Vaulx Medal, named for him.

He died when a scheduled flight between Montreal, Canada and Newark, NJ that he was on collided with power lines on approach to Newark on April 18, 1930,[7] and was buried in the Rozoy-Bellevalle cemetery.