Origin of boulder clay
Examples from the Web for boulder clay
Historical Examples of boulder clay
Might they not belong merely to the talus of this bank of boulder-clay?
But I have since seen in abundance shells of the boulder-clay.
Miller was one of the pioneers in the study of the Boulder-Clay.Hugh Miller
William Keith Leask
The latter it must be supposed was then removed, to be replaced by the boulder-clay.Prehistoric Man
W. L. H. Duckworth
I suppose your Boulder-clay in the high grounds will give you no bother.James Geikie
Marion I. Newbigin