You may select an option from the system menu on the top at any time.
To proceed select the state in which you are interested in seeing aerial photography for.

- After clicking on the date of the photography that you wish to see
- The available scales will be displayed for that date
- Select the scale you wish to view

- After clicking on the state that you wish to see
- An image of that map appears with the USGS 1:125,000 scale
  maps outlined on it and labeled.
- Select the 1:125,000 scale map that you wish to view.

- After clicking on the 1:250,000 scale map that you wish to see
- An image of that map appears with the USGS 1:100,000 scale
  maps outlined on it and labeled.
- Select the 1:100,000 scale map that you wish to view.

- After clicking on the 1:100,000 scale map that you wish to see
- An image of that USGS 1:100,000 scale map in DRG(Digital Raster
  Graphics) is shown with flight lines, frame locations( black dots), roll
  numbers, and frame numbers labeled on it..
- Select any of the yellow colored dots to view the corresponding frame
  of aerial photography.