Old Baldy is a granite batholith which now pokes hisr head out of the surrounding geology after being buried deep in an ancient mountain range for 1.1 billion years. The stripping away of the overlying mountains by weathering and erosion has unloaded the crust, allowing the deeply buried root zone to rise up and ultimately be exposed on the surface. The process is called isostasy and it is akin to unloading a ship in the harbour - as the cargo comes off, the ship rises higher and higher in the water.
Old Baldy looks beautiful in the dawn, towering over the Valley of 1000 Hills.
It's so worth getting up early to the get pics.
An Invitation
Start your geographical adventures by reading our articles here. They are pertinent to the physical geography courses that we have to teach, and do much to frame the subject and to provide insights that are not normally to be found in the text books. Enjoy, and leave your comments and requests in the comments section.
Hang out with fellow geographers here, check out what is happening here, and go see some amazing videos of wonderful landscapes here. And last but not least, amazingly interesting snippets which brings earth sciences and geography into our everyday lives here.
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