Lost River - Karst Information Portal

2007 NSS Convention Guidebook
Southern Harrison County
This guidebook does not address the large
and separate sinkhole plain and upland karst
areas of southern Harrison County south of
Corydon and Indian Creek other than to note
that such significant caves as the 20-mile-long
Binkleys Cave and the heavily decorated and
historic commercial Squire Boone Caverns
(formerly Boones Mill Cave) are examples of
a well developed cave area. The author laments
not visiting this area on the trip and for not
treating it more fully in the guidebook.
See articles of these and other southern
Harrison County caves and geological
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references in the cave description articles. The
area is crossed by Buck Creek and Mosquito
Creek, both incised deeply into the Mitchell
Plain. At least one Ohio River-related feature
surrounded by the sinkhole plain is worthy
of the drive, and that is to see the Mauckport
Meander, Figure 23, a huge abandoned bend
in the ancestral Ohio that contains very old
glacial sand and gravel outwash sediments
about 60 feet thick. Buck Creek discharges into
this feature. The overall area can be reached by
taking State Road 135 south from Corydon,
and also by touring via State Road 11.
Figure 23. The Mauckport Meander is a remnant of the confluence of Buck Creek and the
preglacial ancestral Ohio River valley, incised into the Mitchell Plain.