Below are two discussions about the Grand Canyon. The first deals with laying down the widespread layers, and the second with the carving of the huge Canyon. Both also available for download in PDF format.
Download THE GRAND CANYON PPT Presentations
Below are two discussions about the Grand Canyon. The first deals with laying down the widespread layers, and the second with the carving of the huge Canyon. Both also available for download in PDF format.
Download THE GRAND CANYON PPT Presentations