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Another area of concern is karst; a terrain or type of topography generally underlain by soluble
rocks, such as limestone, gypsum, and dolomite, in which the topography is chiefly formed by
dissolving the rock, are also particularly prone to sinkholes.
Figure 3.69 illustrates the location of karst features and features analogous to karst in Kansas.
The green areas shown in the map show fissures, tubes, and caves generally less than 1,000
feet long with 50 feet or less vertical extent in gently dipping to flat-lying carbonate rock. The
planning area shows karst features in all three counties. There are limited documented
problems associated with natural limestone subsidence and sinkholes in Kansas. However,
eastern Kansas has anthropogenic risk associated with limestone mines.
Figure 3.69. Karst Features in Kansas
Previous Occurrences
The following map shows one-mile square sections of land in the eastern side of the state
where sinkhole locations have been documented in writing. Red indicates sinkhole occurrences
and yellow indicates springs. Region L, indicated by LV, WY, and JO show that Wyandotte and
Johnson County have had documented sinkhole locations.
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