Man-made Mini Sinkhole in Sturgeon Bay
I love karst landscapes. Wisconsin’s Door County, where I was born and currently live, is a monumental block of cracked, leaky Niagara dolomite, riddled with caves. Southern Poland, where my novel, A Drum Is Empty, is set, has it beat all to heck for caves, sinkholes, water-sculpted limestone cliffs, and monadnocks (huge free-standing rocks). A…