Cally Trench writes: 'Ground Level is a set of six drawings in ink and acrylic on watercolour paper, each drawing being 76 x 76 cm. The drawings were made from my observations at ground level of the area around where I live, but drawn as maps, using the common map conventions of an overhead viewpoint and an orthogonal projection. In order to make Ground Level, I took on the persona of an explorer and cartographer, making drawings and notes in a series of sketchbooks while walking around the area.
Ground Level was not made using aerial photography, but it shares the overhead viewpoint of satellite surveillance photography of the kind familiar to us from news footage of war zones. It differs from surveillance photography in its very partial account of the land. I did not trespass onto other people's land, and my view was therefore restricted by buildings, natural obstacles, gates, fences and walls. These areas are left blank in Ground Level, and become a kind of map of privacy.'
Ground Level was exhibited for the first time in the 2007 Central Saint Martins MA Interim Show, at The Bargehouse, South Bank, London. The drawings were also included in Mapping at Bury Art Gallery and Surveillance at South Hill Park, Bracknell in 2007, and in Zoom and Ground Level at Wycombe Museum in 2008.