Chuck - I would not stop but would continue on to my stand.
By your comments you heard the deer at 5:45, if daylight is 7am, you have heard deer at leastan hour and 15min before daylight and you are only 75 yds away.

Even if you decided to stay and wait and the deer never moved away (which isthe reason for not continuing on), you would probably not be able to see them anyway if 20 yds is your max.

I would definitely continue on to get setup in the treestand. It would also give you enough time to let the woods quiet down.

Just my two cents....