title: Obtain Latitude and Longitude from a GeoTIFF File
body: <p>Using GDAL in Python, how do you get the latitude and longitude of a GeoTIFF file?</p>
  
  <p>GeoTIFF's do not appear to store any coordinate information.  Instead, they store the XY Origin coordinates.  However, the XY coordinates do not provide the latitude and longitude of the top left corner and bottom left corner.</p>
  
  <p>It appears I will need to do some math to solve this problem, but I don't have a clue on where to start.</p>
  
  <p>What procedure is required to have this performed?</p>
  
  <p>I know that the <code>GetGeoTransform()</code> method is important for this, however, I don't know what to do with it from there.</p>