The Concord River runs through Concord, and it provided the colonists with a tactical advantage. When the British troops arrived at Concord, the colonists were waiting on the high ground on the other side of the North Bridge, watching the British troops' movements. The colonists' hidden position allowed them to conceal their numbers while they waited for more militia members to join them. They then mounted their attack on the British on the North Bridge, pushing the British back to Boston.
