Tall trees

These are two of three such beautiful trees on the edge of a field near us. The trunk is grey and the leaves a vivid bright green.

I've looked through my trees book and at tree identification sites, but can't identify it for sure. Might it be a beech?

Meanwhile, thank you so much for all the lovely comments and stars for my yesterday's blip. So encouraging and much appreciated.

Oh, I should add that today's blip is my second contender this week for the 2011Challenge trees. My first, on a different scale entirely, was here.