I call these erasure sketches. They were created over a two month period in 2012 when I traveled the Pacific Northwest. While in this time period I completed only three drawings, each drawing took weeks to create. The self-imposed frame that I gave myself: I would draw and erase over and over again and make an intuitive decision about when each image was complete. I also made sure that all recognizable objects that might appear from my memory or imagination be erased.