Search for Quads !!

ChartTiff offers several methods to search for individual quads.

  • Individual Topographic quads are available for all 50 United States
        plus Puerto Rico and the Virgin Islands.
  • NAIP & USGS Aerial Imagery is available for the lower 48 states.
  • Elevation data is available for all 50 United States
        plus Puerto Rico and the Virgin Islands, and also
        available for Mexico & Canada up to the 54th parallel.
  • A selection method will return 1 to any number of quads.
  • User will then select the button for the quad of interest.
  • User can then select the type of data interested from the list of all the current data available for the selected quad.
  • Users can also select the button for additional information, thumbnail views and all historical quads that maybe available.

Select Quads by Number
AYYXXXrc  where:
A = Not Required or
   C, F, O, I, L, K, P
XX = Latitude (18 to 71)
YYY = Longitude (066 to 185)
r = Quad Row (a thru h)   
c = Quad Column (1 thru 8)
Sample returns O37109c1 thru O37109c8
Select Quads by Name
Sample returns Los Angeles, CA & Los Angeles, TX
Select Quads by Latitude / Longitude Point
Returns Individual Quads containing the point.
Input as Decimal Degrees (35.75)
or as Degrees Minutes Seconds
          (35 30 15) / (35d 30m 15s) / (35.30.15)

Latitude   Longitude
Sample returns C47098a1, F47099e1 and O47099e5
Select Quads by GoogleMaps Location
Use our GoogleMaps interface to locate your location of interest.
Set a marker to select the location.
Select Quads by Latitude / Longitude Area
Returns Individual Quads contained in the area.
Input as Decimal Degrees (35.75)
or as Degrees Minutes Seconds
          (35 30 15) / (35d 30m 15s) / (35.30.15)

North Lat  
West Long    East Long
 South Lat
 Sample returns C47098a1, F47099a1,
O47099a1 thru O47099a5, O47099b1 thru O47099b5,
O47099c1 thru O47099c5, O47099d1 thru O47099d5,
Select Quads from a County
Sample returns all Counties for the state of Alabama,
selection then returns 1:24,000 scale quads
Select Quads by Place
State
  Type