karelia — belaya gora settlement — marble bear

rock geology boulder terrain bedrock cliff wall formation stonewall tree ruins trail wilderness soil wadi badlands stream ridge karelia belaya gora settlement marble bear white mountain karel valgeimägi village girvassky rural kondopozhsky district republic russian federation 1757 deposit discovered xviii century merchant martyanov native lychny island breaking began belogorsky tivdian used decoration buildings palaces petersburg isaac's cathedral winter mikhailovsky mariinsky engineering castle kazan cathedral quarry operated beginning century