Stock photography, photos: Horseshoe Falls, Niagara, Canada Stock photos of Maid of the Mist, Horseshoe Falls, Niagara, Canada Photograph: © Alan Spencer Click for a larger image and more information Keywords associated with this stock photo: niagara, niagra, river, fall,, waterfall, torrent, boat,, whirlpool, rapid, danger, dangerous, overcast, horseshoe, horse shoe, , plunge, precipice, cliff, great, lakes, erie, ontario,, united states of america,, usa, canada, travel,, tourism, tourist, sightseer, visitor, spray,