I've added some updates to the map. Gunnison to Parlin, west side of the tunnel and Nathrop to Newett. Schwanders to Newett, along Trout Creek, has some problem areas as the old maps didn't overlay to well on the aerials. I'd love to explore the area and see how it looks on the ground.
It would also be fun to go out and try to find the "pile of rock" benchmark indicated on the valuation map east of the Arkansas River.