HomeUSASouth DakotaNeedles Of Rushmore, TheMount Rushmore National MemorialMount BaldyQuarterWays, TheDuchess Boulder ( R), TheDuchess Boulder ( R), TheLAT,LNG 43.89110, -103.45650CREATED UPDATED Edit MapShareDescription[Edit]The Duchess Boulder is a great boulder up hill slightly from the valley floor. It offers 2 problems one being a warm up crack feature route and the other is the namesake problem.2 ClimbsComing soon: New Climbs1The DuchessV6+Bouldering2The BojoV2Bouldering