Hi Dawn, and welcome to the forum.
This is an interesting question, thanks for asking it! However, as you will find as you get to know the forum, the nub of the matter is, 'what are you calling a ley line?'
Are you talking about a
visual ley - an alignment of sites in the Watkins tradition?
Are you talking about an
energy ley that can be dowsed?
Are you talking about a
serpent/dragon earth energy line?
Or some other form of earth energy line?
The answer to the first question is 'yes', and you might be able to find one on
The Society of Ley Hunters website - although their
Facebook page is probably a better shot.
The answer to the other two questions is, 'sometimes'. On pre-digital film cameras, this used to happen sometimes, where the photo showed some optical effect, like a band of light or something, where the ley was. Digital cameras can also show effects at times. Digital shots are more likely to show 'orbs' in energetic spots.
If you have any such pictures yourself, it would be lovely to see them. Posting pictures on the forum is a little fiddly as you have to host them elsewhere; there is
a tutorial in the 'Forum Matters' section.