div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: · 2017-05-01 · years In some instances sinkholes formed in areas where wetland vegetation flourished and caused the sinkholes to become filled with soft compressible organic src=https:reader035fdocumentsinreader035viewer20220708115f0a98717e708231d42c67f1html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: · 2017-05-01 · years In some instances sinkholes formed in areas where wetland vegetation flourished and caused the sinkholes to become filled with soft compressible organic src=https:reader035fdocumentsinreader035viewer20220708115f0a98717e708231d42c67f1html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: · 2017-05-01 · years In some instances sinkholes formed in areas where wetland vegetation flourished and caused the sinkholes to become filled with soft compressible organic src=https:reader035fdocumentsinreader035viewer20220708115f0a98717e708231d42c67f1html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: · 2017-05-01 · years In some instances sinkholes formed in areas where wetland vegetation flourished and caused the sinkholes to become filled with soft compressible organic src=https:reader035fdocumentsinreader035viewer20220708115f0a98717e708231d42c67f1html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: · 2017-05-01 · years In some instances sinkholes formed in areas where wetland vegetation flourished and caused the sinkholes to become filled with soft compressible...