Aquifer, Arrow Sign, Carbon Dioxide, Close-Up, Coal, Connection, Cross Section, Day, Digitally Generated, Direction, Environment, Fossil Fuel, Fuel and Power Generation, Geology, Global Warming
collecting, field trip, geology, horizontal, no people, pen and ink, research, rock, rucksack, stone, studio shot, watercolour painting, white background, bag, Dorling Kindersley Prints, 102115948
Architecture, Arizona, Awe, Beauty In Nature, Bizarre, Building Exterior, Cloud, Day, Geology, Grand Canyon, High Angle View, Horizon Over Land, Illustration and Painting, Illustrative Technique
Absence, Abundance, Close-Up, Day, Extreme Terrain, Geology, High Angle View, Illustration and Painting, Illustrative Technique, In A Row, Isolated, Majestic, Mountain, Nature, No People, Outdoors