Yoho National Park's Leanchoil Hoodoos are one of the more impressive geological wonders to be found in the Canadian Rockies. Formed when softer sedimentary rock is eroded beneath harder stone that protects each spire from the elements, hoodoos like these are more commonly found in dry, hot areas that receive less rainfall than Yoho National Park. The Leanchoil Hoodoos are a short but moderately difficult hike from the Hoodoo Creek campground 22km west of Field. The steep ascent should only be attempted by confident hikers. Those who do make the visit will be richly rewarded with stellar vantage-points from both below the Hoodoos and looking down upon the spires and the valley below.