Union forces under General George McClellan clash with Confederates at the Battle of South Mountain, the first major battle of the General Robert E. Lee's Maryland Campaign.
Year
1862
Date of Event
Help us tell the story of America.
For over 75 years, American Heritage has chronicled our nation's history like no other publication. Please support our trusted, non-partisan historical writing and the volunteers that sustain it by donating today. We rely on contributions from readers like you to survive. Donate
