Old Maps of Idaho

[esuitter]

Does anyone know of a source for old maps of Idaho prior to 1930?
Eric

[maps4gps]

What kind of map, USGS topo??
Paper, digital ?

[Indrid Cold]

Like these?

http://www.lib.utexas.edu/maps/topo/idaho/

[esuitter]

Yes just like that thanks.