G-1 Aerial Surveys announces an exciting new product line. 

G-1 has built a library of thousands of USGS Digital Ortho Photo Quad Sheet maps and USGS DRG Line work topo maps.  These maps are all publicly available for download from the Illinois Department of Natural Resource Geospatial Clearinghouse. 

You can freely download each of these files yourself and review them.  We have already downloaded them all for you and can either print them or ship them on disk to you saving you hours of downloading time and sorting. G-1 also builds mosaics of any area from either the DRG or DOQ map data sets.  Each file has been checked for geo-referencing accuracy and placed in its coordinates position within an AutoCAD drawing file.

The entire library is also available on DVD or external hard drive.  This is public domain map data.  We are not selling the map data.  We are making it much more accessible.  G-1 Prints these maps in the highest detail and quality.  We have all 4246 SID files for the DOQ library for the State of Illinois. 

G-1 has translated all SID files into TIF files and Georeferenced them in AutoCAD.   We not only have the 7.5 and 15 sec.(1 : 24,000)maps  but we also have the 1 : 100,000 and 1 : 250,000 scale USGS DRG map sheets.

Illinois Digital Map Data Products:

DOQ/DRG Map data on CD-ROM/DVD/External Hard Drive.  Please use the IDRN map data website to choose which files or area you wish to have put on disk. 

Order price and delivery method will depend on the size of data needed. The entire 12.6 GB library can also be purchased on external HD for a price of $160.00. 

Data requests small enough to fit on one to four CD-ROM's are $6.00 per CD.  Larger datasets will be put on DVD for a cost of $18 per disk.  All orders will include a standard shipping and handling charge.

Illinois Digital Map Printed Products:

DOQ/DRG Map data printed on our state of the art Epson Stylus Pro 9800 printer.  DOQ maps are printed on the best Photo High Gloss Premium Paper at 2880 dpi for stunning results. 

DRG line work topo maps are printed on double weight matte stock at 1440 dpi for the best line work results.  Other stocks and print resolutions available upon request. 

DOQ photo printing is done at a price of $7.00 to  per square foot.  DRG line printing is done at a price of $2.50 per square foot.   All orders will include a standard shipping and handling charge. Mounting is also available upon request.