Air pollution consists of gaseous, liquid, or solid substances that, when present in sufficient concentration, for a sufficient time, and under certain conditions, tend to interfere with human comfort, health or welfare, and cause environmental damage.
Triple Falls in Glacier National Park, Montana. October 31, 2012 by wahba 3 Comments. Located at the Montana and bordering with the Canada provinces British Columbia and Alberta, the Glacier national park is spread over the 1,000,000 acres and it is real natural beauty.In this picture you can enjoy the triple falls with the outstanding background landscapes. The photography has been taken by Chlo Ethan.ctober 31, 2012 by wahba 3 Comments. Located at the Montana and bordering with the Canada provinces British Columbia and Alberta, the Glacier national park is spread over the 1,000,000 acres and it is real natural beauty. In this picture you can enjoy the triple falls with the outstanding background landscapes.
Hidden Lake Lookout Trail. North Cascades National Park. Hidden Lake Lookout Trail is a 7.7 mile heavily trafficked out and back trail located near Marblemount, Washington that features a lake and is rated as difficult. The trail offers a number of activity options and is best used from March until October. Dogs are also able to use this trail but must be kept on leash.