ChartTiff offers National Elevation Data Sets (NEDs)

Projection information is selected during Check Out.
Select 10 or 30 Meter NED Quads or Contour Quads.
Select UTM, State Plane or Latitude / Longitude Projection.
Select USGS DEM or XYZ Text formats.
The projection and format information applies for complete order.
If multiple projections are required please submit multiple orders.

ChartTiff Interactive
Try our totally interactive geo-graphical interface for selecting and ordering Individual NED's
or use the Query Options below.

Select Quads by Place Name:

State:

Type:

(click here for type definitions)

Note: When searching replace
' with blank i.e. input O Neil for O'Neil

Select Quads by State / County:

Sample returns all Counties for the state of Alabama

Select Quads by Quad Name:

Sample returns Los Angeles, CA & Los Angeles, TX
Note: When searching replace ' with blank i.e. input O Neil for O'Neil

Select Quads by Number:

OYYXXXrc where:

O	= 1:24,000 Scale
XX	= Latitude (28 to 49)
YYY	= Longitude (66 to 124)
r	= Quad Row (a thru h)
c	= Quad Column (1 thru 8)

Select Quads by Point:
Returns Individual Quads containing point.

Sample returns O47099e5

Select Quads by Area:
Returns Individual Quads within Specified Area.

Sample returns O47099a1 thru 47099a4 and O47099b1 thru 47099b4