The rockwork by Scott Wyllie includes a variety of specimens donated primarily by David Blackwell, Jack Rice and Allan Kays of the Department of Geological Sciences. These are labeled in the key to the left. The black rocks marked are all local Oligocene basalt of the Little Butte Volcanics from the hilltop quarry south of downtown Springfield. To get information about the other rocks, simply put the mouse over the corresponding number.

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