Waterfalls occur most frequently in mountainous countries, where the streams from the mountain sides enter the valleys. These mountain waterfalls, however, are generally rather curious and picturesque than grand, the volume of water being in most cases comparatively insignificant, though the height of fall is occasionally very great.

Among the leading waterfalls are:

Yosemite (3 plunges)

.2,660

feet.

Roraima Falls, Guiana (2 plunges)

2,000

"

Grand Falls, Labrador

.2,000

"

Sutherland Falls, New Zealand (3 plunges)

.1,904

"

Kukenam Fall, Guiana (sheer plunge)

1,500

"

Gavarnie Fall, Pyrenees

.1,380

"

Staubbach

. 866

"

Kaieteur Falls, Guiana

. 740

"

Tequendama Falls, near Bogota

. 625

"

Victoria Falls, Zambesi

. 400

"

Rio Iguassu, southern Brazil

215

"

Shoshone

. 210

"

Foyers, highest in Britain (2 plunges)

205

"

Hay River, Alaska

200

"

Niagara

. 169

"