In addition to a set of Contours generated from the
National Elevation Dataset.

ChartTiff ContoursPlus includes the corresponding
DLG quad set of Overlays.

Optional Overlays Available
As Example: 1:24,000 Scale Quad O40105a1 -- Erie, CO

BD -- Boundaries	HP -- Hypsography
HY -- Hydrography	MS -- Man-Made Features
MT -- Misc Transportation	NV -- Non-Vegetative Cover
PL -- Public Land Survey	RD -- Roads
RR -- Railroads	SC -- Vegetative Surface Cover
SM -- Survey Control

• Contours generated from the National Elevation Dataset
  Click for Details
   
• Overlays Based on Availability
  
  1)  Includes all Large 1:24,000 Scale Overlays Available.
  
  2)  Non-Available Large 1:24,000 Scale Overlays are supplied from
       Overlays generated from the Intermediate 1:100,000 Scale
       Overlays.
  
  3)  Some overlays regardless of scale may not be available from the
       USGS.  In this case some overlays may not be provided.
   
• 
  
  
• Available in ESRI Shapefiles and AutoCAD DXF
  Includes all attributes.
  Note:  24 hour turnaround for Internet downloads on Contours and Overlays
  
  
• Available Projections (selected during check-out)
  UTM - User Selectable Zones - NAD27 / NAD83 / WGS72 /  WGS84
  State Plane - User Selectable Zones - NAD27 / NAD83
  Latitude / Longitude - NAD27 / NAD83 / WGS72 /  WGS84
  
  
• Contour Units (selected during check-out))
  Select 5, 10, 20, 25, 30, 40, 50, 60, 80, 90, 100  Feet / Meters
  
  
• ContoursPlus are NOT Available in 1 Free Download Offer
   
• Available via Internet Download, Custom DVD or
  if size requires; an External Disk