0-023 Two large catalpa trees (Catalpa speciosa, b and c) can be seen west of the east road on your way to the maintenance headquarters. They are very old and may have been planted about the time the Monument Avenue entrance was opened. This beautifully flowering tree is the native catalpa species of Illinois, and although its historic range was limited to southern Illinois it can be seen statewide now due to many plantings by pioneer families.
0-023b 39.821367 N, 89.653700 W
0-023c 39.820881 N, 89.653861 W
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