Angeline Lake

Angeline Lake has a low watershed to surface area ratio with low flushing rates.Welch, E. B., Chamberlain, W. H., & Spyridakis, D. E. (1984). [https://www.osti.gov/biblio/5314367 Chemical content of snow and effect of melting on Cascade mountain lakes] Northwest Sci.;(United States), 58(2).Chamberlain, W. H., Welch, E. B., & Spyridakis, D. E. (1984). [https://research.libraries.wsu.edu/xmlui/bitstream/handle/2376/1878/v58%20p85%20Welch%20et%20al.PDF?sequence=1 Chemical Content of Snow and Effect of Melting on Cascade Mountain Lakes]. The lake has a subterranean outlet.{{cite web |url=https://www.waterfallsnorthwest.com/waterfall/Angeline-Falls-4574|title=Angeline Falls - King County, Washington|last= |first= |date= |website= |publisher= Northwest Waterfall Survey|access-date=23 March 2021 |quote=}}

The top land of the outlet channel is blocked by a large landslide. As a consequence, the water exiting the lake percolates in through the landslide and emerges about 1,000 feet downstream from the lake. At this surfacing point, the stream cascades steeply down the hillside over cliffs that line the south side of the Delta Lake basin, forming Angeline Falls, spreading out to 80-100 feet in width and pitching down nearly vertically 424 feet to the talus slopes below.{{cite book |last= Goldman|first=Peggy |author-link= |date= 2014|title=Washington Scrambles: Best Nontechnical Ascents|url= https://books.google.com/books?id=L5sTCgAAQBAJ|location= |publisher=Mountaineers Books|page=Section 37|isbn=9781594858413}}

After the pool of the waterfall, the creek cascades for a short distance before again being absorbed into the rocky slope and receding entirely underground again, emerging approximately 600 vertical feet further down at the south end of Delta Lake.

Angeline Lake is nestled in a long structural benchland with relatively level or gently inclined land bounded by the distinctly steeper slopes of Atrium Peak above and between Angeline and Big Heart Lake.{{cite book|author=Volken, Martin|title=Backcountry Ski & Snowboard Routes Washington|url=https://books.google.com/books?id=D5ATCgAAQBAJ|isbn=9781594856570|year=2014|publisher=Mountaineers Books}}

The lake is located in a prominent valley along the western skirt of the Mount Daniel area in connection with the North-Middle Forks Snoqualmie mountain grouping area.{{Peakbagger Range|125104|Mount Daniel Area}} The valley follows patterns of geomorphology typical of the Northern Cascade Mountains of the Pacific Mountain System with a bedrock composed of pyrrhotite and pyrite found in thin seams {{convert|804|m|feet}} wide at a depth of {{convert|304|m|feet}} below the surface.{{cite web |url=https://thediggings.com/mines/24345|title=Iron Cap Prospect|last= |first= |date= |website= |publisher= Diggings|access-date=23 March 2021 |quote=}}

The host rock in this area is greensand from the Lopingian epoch 260 to 250 million years ago.

Angeline lake is within a hemiboreal climate.{{cite journal |last= Peel|first= M C|last2= Finlayson|first2= B L|date= |title= Updated world map of the Köppen-Geiger climate classification| url = http://www.hydrol-earth-syst-sci.net/11/1633/2007/hess-11-1633-2007.html |journal= Hydrology and Earth System Sciences|publisher= |volume= 11|issue= |pages= 1639-1640|doi= 10.5194/hess-11-1633-2007|access-date=19 March 2021|doi-access= free}} The average temperature is 0°C. The warmest month is August, with an average temperature of 13°C, and the coldest month is January, at an average of −10 °C.{{Cite web|url= http://neo.sci.gsfc.nasa.gov/dataset_index.php|title= NASA Earth Observations Data Set Index|access-date= 19 March 2021|publisher= NASA|archive-date= 6 August 2013|archive-url= https://web.archive.org/web/20130806035941/http://neo.sci.gsfc.nasa.gov/dataset_index.php|url-status= dead}} The average rainfall is 1,989 millimeters per year. The wettest month is January, with 248 millimeters of rain, and the least in August, with 41 millimeters of rain.{{cite web |url=https://www.weatherwx.com/hazardoutlook/wa/azure+lake.html|title=Azure Lake, Washington Climate Averages|last= |first= |date= |website= |publisher= WeatherWX|access-date=30 March 2021 |quote=}}

Access to Angeline Lake is through West Fork Foss Lakes Trail #1064 off Forest Service road 6835 a side road of Foss River Road (Forest Service Road #68), which exits U.S. Highway 2. The trail borders Trout Lake, Lake Malachite, Copper Lake and Little Heart Lake before ending on campsites along Atrium Peak, the ridge between Big Heart Lake and Angeline Lake to the East.{{cite web |url=https://www.peakbagger.com/peak.aspx?pid=2070|title=Atrium Peak, Washington|last= |first= |date= |website= |publisher= PeakBagger.com|access-date=23 March 2021 |quote=}}

The output of Big Heart Lake is approximately a mile from the output of Angeline Lake.{{cite book |last= Spring|first=Vicky and Ira |author-link= |date= |title= 100 Hikes in the Alpine Lakes|url= https://books.google.com/books?id=U07ik7ldtZAC|location= |publisher= WaMountaineers|page=1985|isbn=9780898861082}}

Self-issued Alpine Lake Wilderness permit required for transit within the Necklace Valley area.{{cite web |url=https://www.fs.usda.gov/recarea/mbs/recarea/?recid=17924|title=West Fork Foss Lakes Trail 1064|last= |first= |date= |website= |publisher= United States Department of Agriculture|access-date=23 March 2021 |quote=}}

• List of lakes of the Alpine Lakes Wilderness
• Waterfalls of the West Fork Foss River Valley

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Category:Lakes of King County, Washington

Category:Lakes of the Alpine Lakes Wilderness

Category:Okanogan National Forest