Cavalry Recon

[MikeyB]

After the close of Sept 17th, both sides had fought hard, but one side had more fresh reserves. But without knowing the enemy strength, conservatism won the day.

My question is - why was it so difficult to send a division of cavalry on a quick recon of the Confederate positions to ascertain strength? Or, was it NOT difficult, and just this never occurred to Mac? Or, was this done, and nothing ever came of it?

 

[ErnieMac]

The attached map shows positions at Antietam at 5:30 p.m. about the time the fighting closed. From the troop positions shown, how and where would you suggest the recon take place? Keep in mind sending cavalry straight battle ready infantry regiments does not usually end well for the cavalry.