"informal"=>"yes","motor_vehicle"=>"no","mtb:scale"=>"1","network"=>"Tahoe XC","piste:difficulty"=>"advanced","piste:grooming"=>"classic;skating","piste:name"=>"Purple","piste:operator"=>"Tahoe Cross Country","piste:type"=>"nordic","surface"=>"ground","tracktype"=>"grade4"