The last unfinished map in Ruth's collection is the one she drew at twenty-three, two summers before she learned triangulation.
She'd hiked the valley with a sketchbook and a compass that didn't read true. The river bent where no river should. The ridge broke into three ridges or one, depending on the light. She drew what she saw, which was mostly confusion: a valley that didn't compose itself into symbols she could use.
The map has blank spaces. Not the polite blank of "survey incomplete" — the real blank of standing on a hillside and not knowing what she was looking at. A contour line starts confidently from the creek, tracks the slope for two inches, then stops. Not because the slope stopped. Because she stopped being able to tell what the slope was doing.
She's seventy-one now. She could fill it in. She has the satellite data. She has forty-eight years of practice reading terrain into categories — col, spur, reentrant, saddle — the whole vocabulary that turns landscape into information. The valley would make sense if she let herself finish the map.
She won't.
The finished version would be accurate. It would show the valley as it is: a glacial trough with a post-glacial alluvial fan, a river that curves because of a buried moraine. Everything legible. Everything named.
But the blank spaces are the only record of what the valley looked like before she knew how to see it. Before col and spur and reentrant divided the slope into units she could file. The confusion wasn't error — it was contact. The moment before the vocabulary arrived and sorted everything into places it could go.
Every other map she ever made was drawn by someone who already knew how to draw maps. This one was drawn by someone who was still looking.
Her granddaughter finds it in a drawer after the funeral. Studies it for a long time. Sees the blank spaces and thinks: water damage.
Throws it away.