While looking for a map on the US Geological Survey site today I found a new format of topographic maps. Previously it was easy to download a scanned topographic map in pdf format. Today I noticed that for some regions there is a new kind of map called a US Topo. It has a true color aerial photo for a base with all the usual topographic map features on top.
For example, below is a part of the Iron Springs 7.5 minute map showing the Waynesboro Reservoir, which was made in 1995.
http://store.usgs.gov Topographic maps will never be the same again!