Red Lady, Onya Wilder McCausland, 2016, minewater waste pigment in gum arabic on paper, 150 x 120. Geologically distinct earth colours are constantly forming from coal minewater treatment waste in geographically varied landscapes across the UK. I have found, collected and processed these colours and use them in paintings to re-view perceptions of colour, its material structure and to consider our connection with the contemporary landscape. Stratigraphy, Onya Wilder McCausland, 2016, stone lithograph and minewater waste pigment on paper, 70 x 100. Sedimenting Overnight, Onya Wilder McCausland, 2017, minewater waste pigment in in watercolour on somerset paper, 56 x 76. Vanishing Point, Onya Wilder McCausland, 2016, screen print with minewater waste pigment on paper, 56 x 76. Charcoal Measure, Onya Wilder McCausland, 2016, charcoal, lime mortar, 100 meters over 3 acre area. Installation at Forest of Dean Sculpture Trail Onya Wilder McCausland web: www.onyamccausland.com