To achieve the intaglio surface (texture) of these prints I produce low relief elements to make the impressions. I do this by applying tile cement to Aeroply, which I expose to a high-powered butane torch to create a surface texture. Sometimes I laser cut a three-dimensional low relief wood block of a fossil to create the impression of a fossil within the print. I also use photo-etched steel plates with raised contour lines. The contour patterns are captured by LiDAR, an optical remote sensing technology that can measure the change in elevation of the landscape using pulses from a laser. The contour lines are from the same grid reference as the topographical drawings I make. The colour tones that appear in the prints give a sense of the time of year and the textures refer to the rocks that I have seen there.