These are United States Geological Survey Topographical Quadrangle Maps at 1:24,000 scale, 1989-1999.
Mouse over the part of the island to view the thumbnail version of the corresponding USGS quadrangle.
The thumbnail appears below the menu on the right.
To download a 300 dpi tiff version of the quadrangle, simply right-click on the corresponding region in the index map and select "Save Link As" or "Save Target As".
A 600 dpi version is not available online due to its large file size. To obtain a digital copy, please fill up the Maps/Aerial Photographs Service Request form.