How many creeks have I drawn on my Locator Map? Every one that I could see. I’d look at a topographic map and draw with pencil on 12 inch squares of Tyvek. I would branch off from a river and continue, my line growing finer and fainter, until the creek, and my line, disappeared. I began to love those meandering lines, that tracery that became denser and then more spare, that branched past the towns and …