Only 1 Shortz-era entry found. Click the date to see the answer in context. See the dictionary definition.
|Thursday, November 4, 2010||49D||Topographical feature formed by underground erosion||Mike Nothnagel|
1 result for SINKHOLE from older pre-Shortz puzzles.
|Sunday, August 23, 1992||98A||Surface depression due to a mine collapse||Arthur S. Verdesca||Maleska|