The answer is the ocean-continental convergence. This is where the gold of the Inca civilization come from.
Canadian shield is composed of Precambrian rocks that cover 2.8 million square miles.
Jamestown was established and created on the James River, which is about 15 miles from the Chesapeake bay.
The altitude of the snow line and its horizontal position on the landscape typically change from year to year depending on the weather.
