...finally:
Spearfish DRGs available as Free data. Otto Dassau/GDF Hannover
has merged and reprojected the "Spearfish" and "Deadwood North"
DRGs into a single GeoTIFF with NAD27/UTM projection.
Get it here:
http://grass.itc.it/data.html
-> DRGs: Related South Dakota topo sheets from SDGS,
GeoTIFF, NAD27, 4.7MB
I have included the letter (email) stating that this
file may be freely distributed.
Cheers
Markus