Definition of long shadows

Early morning and evening light can create long shadows like these I've been reading about what long shadows are, and I've watched for them...but this one morning was a really cool example of what they can look like.

You can see the early morning sunrise here has a really short angle of incidence with the earth, and for just a few minutes those posts look like something from the Giant's house Jack visited.  Each of those cross beams are maybe 9-12 inches apart, yet on the ground the shadow is about four to six feet apart.

The moral of the story is that as a photographer we have a narrow window to play with light like this each day if the sun comes out to play.  If you stay alert we may be able to capitalize on treats like this to make some interesting compositions.