In some parts of the world, the buzzing buggers transmit serious diseases; according to the Centers for Disease Control and Prevention, more than 2,300 cases of West Nile virus were reported in 48 states in 2013.
Hikers in Colorado's Rocky Mountain National Park are taking precautions after two visitors were killed by lightning strikes in recent days.
The most stunning granite gorge in the western United States was protected 150 years ago June 30, by a bill signed by President Abraham Lincoln during the height of the Civil War.
Health and fitness tips to help kick your summer fitness goals into high gear.
Jan 2, 2013; 5:00 AM ET Instead of hibernating this winter, grab a friend with some hiking experience and explore the beauty of winter! Violeta Yas has some tips and suggestions to get you started.