š Glacial boulder inscribed with ancient tribal petroglyphs.
š Believed to be carved by the native Suquamish tribe between 1,000 BC and 500 CE.
šæ Explore mysterious ancient rock carvings
š” Spark imagination about ancient cultures
šļø Discover a unique historical landmark on Bainbridge Island
š Experience a unique natural artifact submerged at high tide
š¤ Ponder its unknown purpose as a boundary marker or calendar
ā ļø Petroglyphs may be concealed by barnacles
š Submerged during high tide, check tide charts
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