Green Lake Falls is a large, very difficult to access waterfall

Waterfall

A waterfall is a place where flowing water rapidly drops in elevation as it flows over a steep region or a cliff.-Formation:Waterfalls are commonly formed when a river is young. At these times the channel is often narrow and deep. When the river courses over resistant bedrock, erosion happens...

 located a short distance below the outlet of remote Green Lake, in North Cascades National Park

North Cascades National Park

North Cascades National Park is a U.S. National Park located in the state of Washington. The park is the largest of the three National Park Service units that comprise the North Cascades National Park Service Complex. Several national wilderness areas and British Columbia parkland adjoin the...

, Whatcom County, Washington. It is 979 feet (298.4 m) high & averages 150 feet (45.7 m) wide and flows year-round

Perennial stream

A perennial stream or perennial river is a stream or river that has continuous flow in parts of its bed all year round during years of normal rainfall. "Perennial" streams are contrasted with "intermittent" streams which normally cease flowing for weeks or months each year, and with "ephemeral"...

. It has several tiers, including a 300 foot (91 m) slide and a 500 foot (152 m) plunge.

There is another 175 feet (53.3 m) drop about a fifth of a mile upstream, and if this was included the total height would be close to 1260 feet (384 m). Above that is Green Lake itself, which is fed by several large, glacial streams originating from the Green Lake Glacier. The largest one contains unofficially named Bacon Peak Falls

Bacon Peak Falls

Bacon Peak Falls is a unofficially-named waterfall on an unnamed stream that feeds remote Green Lake in North Cascades National Park, Whatcom County, in the U.S. state of Washington. It is fed by the largest meltwater stream from Green Lake Glacier...

.