<i>Because it is childrens chalk which will have been washed off already by the first rain of which we have lots on Rombalds moor.
</i>

But it <b>doesn't</b> wash off that easily.

Go and chalk something on a rock in your garden and see how long it takes to be washed away by the rain.

You are doing a mighty fine job by locating photographing these carved stones, but please, <b>no more chalk!</b>

Jan has written a great post to show you other ways of bringing out the carvings you wish to record, please listen to and heed his wise words.

Rune