Main Trail
"bicycle"=>"yes","covered"=>"no","dog"=>"leashed","foot"=>"yes","horse"=>"yes","lit"=>"no","motor_vehicle"=>"private","piste:difficulty"=>"easy","piste:grooming"=>"classic+skating","piste:type"=>"nordic","segregated"=>"no","smoothness"=>"intermediate","stroller"=>"yes","surface"=>"fine_gravel","tracktype"=>"grade3"