Arizonan Galleries Arizona Jobs Real Estate Dining Guide Outdoor Fun Glen Canyon National Recreation Area lies in the midst of the Nation's most rugged canyon country. Lake Powell, formed by one of the world's highest dams, stretches for 186 miles along the old Colorado River channel with a shoreline of 1,960 miles. The recreation area stretches hundreds of miles from Lees Ferry in Arizona to the Orange Cliffs of southern Utah, encompassing scenic vistas, geologic wonders, and a panorama of human history. Additionally, the controversy surrounding the construction of Glen Canyon Dam and the creation of Lake Powell contributed to the birth of the modern day environmental movement. Summers are extremely hot, with little, if any, shade.
Winters are moderately cold with night time lows often below freezing.
Spring weather is highly variable with extended periods of winds. Fall weather is usually mild. Recommend lightweight, light colored clothing for summer, including a hat. Layers of clothing are best for other times of the year. All marinas are accessible by paved highways except for Dangling Rope, which is only accessible by water.