Maps!

So Sarah and I like maps.
Back in June, The US Geological Survey had a sale on maps for 1 dollar each. Pretty exciting, I know. I bought 6 maps, plus 5 dollars handling and pretty promptly forgot about it. However, in July, they finally arrived. Some of the maps were actually Survey Bulletins with multiple maps inside as well as charts and research diagrams. 
Here are a few scans:

Aeromagnetic contour map of  southeastern part of the Lewis and Clark Range, western Montana.

Two scans of a map of geologic sections of the southeastern part of the Lewis and Clark Range, western Montana.

Youghiogheny Lake on a map of Allegheny Group Rock in southwestern Pennsylvania

Pittsburgh and surrounding environs. 1 : 250,000 topographic map. Revised 1969

And some pictures from my snazzy new phone:

What the Geological Survey Bulletins look like

The whole map of geologic sections of the southeastern part of the Lewis and Clark Range, western Montana.

Bozeman, Montana 1 : 250,000 topographic map, 1972

The whole Pittsburgh Topo map

Small shot of Monroeton, Pennsylvania 1 : 24,000 topographic map, 1999

Huxley lying on Ebensburg, Johnstown, and Altoona.