What was unusual about the capture of Fort Ticonderoga?

Although various captures of the fort have been made throughout its history, the main irregularity about these captures is the use of the nearby high ground by the attacking force: most forts are built on the highest ground possible and well away from any nearby high points. This weakness was exploited by almost every force to have attacked it, and it seems to have been an overlooked part of the fort's location.

The capture of the fort May 10, 1775 was also one of the first victory's for the colonists when the Green Mountain Boys with Ethan Allen and Benedict Arnold captured the fort.