String of 10 or more satellites traveling in a row.

I had stepped out onto my driveway for my first cigarette of the day.  It was still dark in the sky but clear, no clouds. And as I often do when it is clear in the sky I looked up to the stars.  Immediately I saw what appeared to be a satellite traveling relatively quickly from a West-SouthWest to East NorthEast course but immediately behind him (a mile?) was another one and then I noticed that there was a whole string of them.
 They were mostly evenly spaced apart but not all of them.  A few were 3/4, give or take the distance from each other.   One of them seemed to play slight catch up with the others - But I couldn't be sure.   I am also not sure that the first one I saw was indeed the first one in the column.  I suppose its possible that I didn't look up until the string of these satellite looking semi-bright objects were already half way past.  I just don't know.
 These could be satellites but I have never ever seen perhaps a dozen all strung together in a row.