ChartTiff DEMs   ChartTiff Digital Elevation Models
  DEM Samples
  Receive any one DEM as a Sample Quad

  Select 1 DEM quad of interest from our Quad Search or
  1 Custom Area (Limited to 7.5 Minutes x 7.5 Minutes) DEM from our Custom Area Search
       Only add 1 item to the cart, additional items will be ignored.
       A $ value will be shown in the Order in Progress email as part of the check out system.
       This is NOT an invoice and nothing needs to be paid.

  Quad will be available via Internet Download within minutes

  Projection information is selected during Check Out
       Select UTM, State Plane, Latitude / Longitude or Web Mercator Projection

  Format Available:
       USGS Standard DEM file format
       ESRI Grid Float format
       ASCII Text, X,Y,Z format (comma, tab or space delimited)
       PLS-CADD ASCII Text, X,Y,Z format
       C Tech File format

  After selecting all quad related information:
       Fill in all required Contact Red Fields
       Make sure to select Downloading via the Internet as the shipping method
       Click the Continue Button to proceed to last page
       Click the Confirm Projection and Options check-box
       Make sure to select 1 Free Download as the payment method
       Then simply click the Submit Button