Prior to downlading imagery from http://www.mojavedata.gov/website/downloads, read the following information.

In order to use the interactive map, the following change must be made if you are using Internet Explorer.

1. With Internet Explorer open, go to Tools, Internet Options

2. Go to the Security tab and click on Custom Level

3. Scroll down to Downloads and make sure that Automatic prompting for file downloads and File download are enabled



4. Click OK, Click Yes to the warning box and Click OK.

NOTES:
Once you open the map, select the layer you are looking for i.e. 24k trimmed DRG and refresh the map.  This will bring up the quad grid of the files we have.  Select the hyperlink tool(the lightning bolt) from the toolbar.  Click on the quad that you want to download.

http://www.mojavedata.gov/website/downloads

About the files

Digital Raster Graphics (DRGs) are in tif format inside a zip file

Digital Orthophoto Quarter-Quadrangles (DOQQs) are zip files that contain 4 Mr. SID files that make up the quad.  They are named 1, 2, 3, and 4 and correspond to the graphic below.  Approximately 40 mb each

Digital Elevation Models (DEMs) are zip files that contain 3 files:  a tif, aux, and rrd file for the area/quad.  Approximately 5-6 mb each for 10 meter and 40 mb each for 30 meter

NOTES:
Once you open the map, select the layer you are looking for i.e. 24k trimmed DRG and refresh the map.  This will bring up the quad grid of the files we have.  Select the hyperlink tool(the lightning bolt) from the toolbar.  Click on the quad that you want to download.

http://www.mojavedata.gov/website/downloads