While Pickett's charge of 12,000 or so might be more well known, numbers wise, it doesn't hold a candle to the charge spearheaded by Hood under Lee of 30,000/50,000 at Gaines' Mill.

It's history and a shameless plug!

http://www.civilwar.org/battlefields/gainesmill/gaines-mill-history/greatest-charges.html

http://www.civilwar.org/battlefields/gainesmill/gaines-mill---longstreet-attack-2011/

And some great photos, both now and from 1862.

http://www.civilwar.org/photos/galleries/gaines-mill/gaines-mill.html

These folks need just a little more help to save this hallowed ground.