NE-SAW-JE-WON 



Photo by Michigan Department of Conservation 



PLATE 8.— THE "FORTRESS" OF THE PICTURED ROCKS 



NEAR MUNISING, MICHIGAN, ON LAKE SUPERIOR; NIPISSING AND MODERN 



KM. i lilliMBft. i * !' - »i M« i j m i ' i< m iii l i «»' » ' i 



Photo by Michigan Department of Conservation 



PLATE 9.— CLIFF AND SEA CAVE 



IN CAMBRIAN SANDSTONE, LAKE SUPERIOR; NIPISSING AND MODERN 



72 



