Lake Augusta | |
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Location | Chelan County, Washington, United States |
Coordinates | 47°39′13″N120°50′07″W / 47.6534830°N 120.8354165°W |
Primary outflows | Cabin Creek [1] |
Basin countries | United States |
Surface area | 15.3 acres (0.062 km2) [2] |
Surface elevation | 6,857 ft (2,090 m) [3] |
Lake Augusta is a freshwater lake located on the southwest skirt of Big Jim Mountain, East of Icicle Ridge, in Chelan County, Washington. Because of its close proximity to Icicle Ridge Trail, the lake is a popular area for hiking, swimming, and fishing cutthroat trout. [2] Smaller Lake Ida is a short distance on the opposite side of Icicle Ridge and Big Jim Mountain Lakes or on the northeast slope of the mountain. Lake Augusta is located approximately 15 miles west of the city of Leavenworth. Self-issued Alpine Lake Wilderness permit required for transit within the Lake Augusta area. [4]
Along with neighboring lakes, Lake Augusta was given its name by Albert Hale Sylvester, a topographer for the United States Geological Survey working throughout the North Cascades National Park Complex in the 1900s. [5]
Lake Augusta sits on the south skirt of Big Jim Mountain, consisting of rocky soils of intrusive rock geology. The bedrock is about 3 feet from the surface and mapped as quartz-dolerite and exposed rock that tends to be granodiorite with influence from the intrusions originated from the Mount Stuart Batholith which underlies the Stuart Range and the nearby Wenatchee Mountains. This batholith is about 13 by 16 miles in extent. Two plutonic masses are separated by a thin screen of Chiwaukum Schist and rocks of the Ingalls Complex. The more-eastern pluton is 93 million years old, while the more-western rock mass is between 83 and 86 million years old. [6]
The trail to the lake consists of sandy loam the first half and boulders added in the second half of the trajectory. The west hills of Big Jim Mountain surrounding Lake Augusta grow tonalite and granodiorite corona-bearing dikes. The East hill grew pyroxenites, gabbro amphibolites and other diorites. [7] Mineral boundaries are sharp along Big Jim Mountain except between these two matrix subdomains, which are not immediately distinguishable.
Coronas found in dikes along Lake Augusta show evidence of strain, deformed into elongate ellipsoids with long axes that lie parallel to the dike boundaries. Coarse phenocrysts of igneous feldspar with a high calcium content are locally preserved in Lake Augusta. [8]
Lake Augusta has a hemiboreal climate. [9] The average temperature is 9 °C. The warmest month is August, with an average temperature of 20 °C, and the coldest month is January, at an average of −6 °C. [10] The average rainfall is 828 millimeters per year. The wettest month is January, with 233 millimeters of rain, and the least in July, with 28 millimeters of rain. [11]
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The foot trail starts at the Chatter Creek Trailhead at the end of USFS Road 7609 on the north bank of Icicle Creek. Chatter Creek Trail #1580 is approximately 5.5 miles long and travels fairly closely to the course of Chatter Creek. The trail leads past Lake Sylvester and Lake Alice reaching and joining Icicle Ridge Trail #1580 on the north skirt of Grindstone mountain. [12] Access to Lake Augusta is off Icicle Ridge Trail to the right (east) of its junction with Chatter Creek Trail. Icicle Ridge Trail shortly afterwards will follow the ridge to Lake Ida on the right and Lake Augusta over the east slope of Big Jim Mountain.
Campsites are located along the first few miles of Chatter Creek Trail until the trail becomes more forested around the bowls formed for Lakes Sylvester and Alice. Several campsite are also located around the shore of Lake Augusta. [4] Self-issued Alpine Lake Wilderness permit required for transit within the Grindstone Mountain area and can be obtained at the Chatter Creek Trailhead and the Campground past the Guard station. [13]
Access to Icicle Ridge Trail can also be gained a further distance away by Fourth of July Trail #1579 and from the Icicle Ridge Trailhead off Icicle Road in the city of Leavenworth. [4] Icicle Ridge is also intersected by Hatchery Creek Trail #1577 a short distance from Lake Augusta coming from the north. The Hatchery Creek Trailhead is approximately 6 miles from the Icicle Ridge Junction and is located West of Tumwater Campground as Highway 2 crosses over Wenatchee River, south of Chiwaukum, Washington. A good part of the Hatchery Creek Trail is overgrown by fireweed and charred logs remnants of the Hatchery Fire of 1994. [14]
The Alpine Lakes Wilderness is a large wilderness area spanning the Central Cascades of Washington state in the United States. The wilderness is located in parts of Wenatchee National Forest and Snoqualmie National Forest, and is approximately bounded by Interstate 90 and Snoqualmie Pass to the south and U.S. Route 2 and Stevens Pass to the north. The Alpine Lakes is the largest wilderness area near the population centers of Puget Sound, counted at 414,161 acres (167,605 ha) following the 2014 expansion.
The Enchantments is a region within the Alpine Lakes Wilderness area of Washington state's Cascade Mountain Range. At an elevation of 4,500 feet, it is home to over 700 alpine lakes and ponds surrounded by the vast peaks of Cashmere Crags, which rate among the best rock-climbing sites in the western United States. The highest peak, Dragontail Peak, stretches 8,840 feet high. The Enchantments is located 15 miles southwest of the popular Bavarian-themed town Leavenworth, Washington in the United States and is regarded as one of the most spectacular regions in the Cascade Range.
Icicle Creek is a non navigable stream in the U.S. state of Washington. It originates at Josephine Lake near the crest of the Cascade Range and flows generally east to join the Wenatchee River near Leavenworth. Icicle Creek's drainage basin is mountainous and mostly undeveloped land within the Wenatchee National Forest and the Alpine Lakes Wilderness. The final 6 miles (10 km) of the creek are moderately developed with scattered homes and pasture, a golf course, children's camp, a small housing development called Icicle Island Club, and the Leavenworth National Fish Hatchery. Some water is diverted from the creek for municipal use by the City of Leavenworth at Icicle Creek river mile 5.6. Near Leavenworth, the wheelchair-accessible Icicle Creek Nature Trail, a National Recreation Trail designated in 2005, runs 1.0 mile (1.6 km) along a historic creek channel.
Albert Hale Sylvester was a pioneer surveyor, explorer, and forest supervisor in the Cascade Range of the U.S. state of Washington. He was a topographer for the United States Geological Survey (USGS) in the Snoqualmie Ranger District between 1897 and 1907. Then, from 1908 to 1931, he served the United States Forest Service as the first forest supervisor of Wenatchee National Forest. His work involved the first detailed surveying and mapping of large portions of the Cascade Range in Washington, over the course of which he gave names to over 1,000 natural features. The surveying work often required placing cairns and other survey targets on top of mountains. He made the first ascents of a number of mountains in Washington. Over the course of his career he explored areas previously unknown to non-indigenous people. One such area, which Sylvester discovered, explored, and named, is The Enchantments. In 1944, while leading a party of friends to one of his favorite parts of the mountains, Sylvester was mortally wounded when his horse panicked and lost his footing on a steep and rocky slope.
Big Chiwaukum is a prominent 8,098-foot (2,468-metre) mountain in Chelan County, Washington, United States. Big Chiwaukum is located northeast of Frosty Pass, and within the Alpine Lakes Wilderness. Big Chiwaukum is the highest peak in the Chiwaukum Mountains, a subset of the Cascade Range. The nearest higher peak is Cashmere Mountain, 10.35 mi (16.66 km) to the south-southeast. Precipitation runoff from Big Chiwaukum drains into tributaries of the Wenatchee River. In the Wenatchee dialect, Chiwaukum means many little creeks running into one big one.
Bulls Tooth is a 6,840+ ft multi-peak mountain located in Chelan County of Washington state. Bulls Tooth is situated 5.5 mi (8.9 km) southeast of Stevens Pass, and within the Alpine Lakes Wilderness, on land managed by the Okanogan–Wenatchee National Forest. Bulls Tooth is part of the Chiwaukum Mountains, which are a subset of the Cascade Range. Its nearest higher neighbor is Snowgrass Mountain, 3.3 mi (5.3 km) to the east. Precipitation runoff from the peak drains into tributaries of Icicle Creek, which in turn is a tributary of the Wenatchee River. This mountain was named by Albert Hale Sylvester for its resemblance to a tooth.
Grindstone Mountain is a 7,533-foot (2,296-metre) mountain summit located in the Icicle Creek Valley in Chelan County of Washington state. Grindstone Mountain is situated 12 mi (19 km) west of Leavenworth, within the Alpine Lakes Wilderness, on land managed by the Okanogan–Wenatchee National Forest. Grindstone Mountain is the seventh-highest peak in the Chiwaukum Mountains, a subset of the Cascade Range. Its nearest higher neighbor is Ladies Peak, 2.2 mi (3.5 km) to the north-northwest, and Cape Horn is set 1.4 mi (2.3 km) to the north. Precipitation runoff from Grindstone drains into Icicle Creek, which is a tributary of the Wenatchee River. Although modest in elevation, relief is significant since Grindstone rises 4,700 feet above Icicle Creek Valley in less than two miles. Grindstone Mountain was named by Albert Hale Sylvester in association with Grindstone Creek, which flows from Sylvester Lake on this mountain's southwest slope. Sylvester found a small grindstone which had fallen from a pack horse fording the creek.
Cape Horn is a 7,316-foot (2,230-metre) mountain summit located in Chelan County of Washington state. Cape Horn is situated 12 mi (19 km) west-northwest of Leavenworth, within the Alpine Lakes Wilderness, on land managed by the Okanogan–Wenatchee National Forest. Cape Horn is part of the Chiwaukum Mountains, a subset of the Cascade Range. The nearest higher neighbor is Ladies Peak, 0.9 mi (1.4 km) to the northwest, and Grindstone Mountain is set 1.4 mi (2.3 km) to the south. Precipitation runoff from Cape Horn drains west to Icicle Creek, whereas the east slopes drain into Chiwaukum Creek, and both are tributaries of the Wenatchee River. Although modest in elevation, relief is significant since this peak rises over 4,300 feet above Icicle Creek Valley in approximately two miles. This mountain was named by Albert Hale Sylvester in 1909 for its sharp profile.
Ladies Peak is a 7,708-foot (2,349-metre) mountain summit located in Chelan County of Washington state. Ladies Peak is situated 13 mi (21 km) west-northwest of Leavenworth, within the Alpine Lakes Wilderness, on land managed by the Okanogan–Wenatchee National Forest. Ladies Peak is part of the Chiwaukum Mountains, a subset of the Cascade Range. Its nearest higher neighbor is Snowgrass Mountain, 1.27 mi (2.04 km) to the north, and Cape Horn is set 0.9 mi (1.4 km) to the southeast. Precipitation runoff from Ladies Peak drains west to Icicle Creek, whereas the east slopes drain into Chiwaukum Creek, and both are tributaries of the Wenatchee River. Although modest in elevation, relief is significant since this peak rises over 4,700 feet above Icicle Creek Valley in approximately two miles. This unofficially named peak is named in association with the nearby officially named Ladies Pass, which like many geographical features in this region was named by Albert Hale Sylvester.
Big Lou is a 7,780+ ft mountain summit located in Chelan County of Washington state. It is situated 8.5 mi (13.7 km) west-northwest of Leavenworth, on the boundary of the Alpine Lakes Wilderness, and on land managed by the Okanogan–Wenatchee National Forest. Big Lou is the highest point on Icicle Ridge, and is the third-highest peak in the Chiwaukum Mountains, a subset of the Cascade Range. Its nearest higher neighbor is Snowgrass Mountain, 5 mi (8.0 km) to the northwest, and slightly lower Big Jim Mountain is set 1.75 mi (2.82 km) to the north-northeast. Precipitation runoff from Big Lou drains into Icicle Creek and other tributaries of the Wenatchee River. Although modest in elevation, relief is significant since Big Lou rises 5,200 feet above Icicle Creek Valley in approximately two miles. Big Lou is named for mountaineer Lou Whittaker, the twin brother of Jim Whittaker, the first American to summit Mount Everest.
Lake Alice is a freshwater lakes located on the north slope of the Grindstone Mountain, in Chelan County, Washington. The lake is a popular area for hiking, swimming, and fishing. Self-issued Alpine Lake Wilderness permit required for transit within the Lake Alice area.
Lake Sylvester is a freshwater lake located on the north slope of the Grindstone Mountain, in Chelan County, Washington. The lake is a popular area for hiking, swimming, and fishing. Lake Sylvester is located approximately 15 miles west of the city of Leavenworth and access is obtained by Chatter Creek Trail #1580. Self-issued Alpine Lake Wilderness permit required for transit within the Grindstone Mountain area.
Lower Florence Lake is a freshwater lake located on the west skirt of Ladies Peak and Cape Horn, and North of Grindstone Mountain, in Chelan County, Washington. The lake is a popular area for hiking, swimming, and fishing cutthroat trout. Lower Florence Lake is located further down the slope from Upper Florence Lake, approximately 15 miles west of the city of Leavenworth. Self-issued Alpine Lake Wilderness permit is required for transit within the Lake Alice area.
Upper Florence Lake is a freshwater lake located on the west skirt of Ladies Peak and Cape Horn, and North of Grindstone Mountain, in Chelan County, Washington. The lake is a popular area for hiking, swimming, and fishing, especially for rainbow trout. Lower Florence Lake is located further down the slope of Mary Pass from Upper Florence Lake, approximately 15 miles west of the city of Leavenworth. Self-issued Alpine Lake Wilderness permit required for transit within the Lake Alice area.
Lake Ida is a freshwater lake located along Icicle Ridge, approximately 10 miles west of the city of Leavenworth in Chelan County, Washington. Because of its close proximity to Icicle Ridge Trail, the lake is a popular area for hiking, swimming, and fishing cutthroat trout. Lake Augusta is a short distance on the opposite side of Icicle Ridge. Lake Ida sits on a highly glaciated alpine cirque, surrounded by a coniferous forest primarily larch pines and outflows into Ida Creek, a tributary of Icicle Creek. At least one unrated waterfall is found downstream as Ida Creek runs the south slope of Icicle Ridge. Self-issued Alpine Lake Wilderness permit required for transit within the Lake Ida and Augusta area.
Lake Edna is a freshwater lake located along Icicle Ridge, approximately 10 miles west of the city of Leavenworth in Chelan County, Washington. Because of its close proximity to Icicle Ridge Trail, the lake is a popular area for hiking, swimming, and fishing. Lake Alice is a short distance in a prominent cirque on the opposite side of Icicle Ridge.
Big Jim Mountain Lakes are a set of small freshwater lakes located on the northeast skirt of Big Jim Mountain, East of Icicle Ridge, in Chelan County, Washington. Because of its close proximity to Icicle Ridge Trail, the lake is a popular area for hiking, swimming, and fishing. Lake Augusta is a short distance on the opposite side of Icicle Ridge. The lakes are located approximately 2.5 miles from a trail junction area called "The Badlands".
Spectacle Lake is an alpine freshwater lake located on the northern skirt of Chikamin Peak and Lemah Mountain in Kittitas County on its western border with King County, Washington. Because of its proximity to surrounding peaks and mountains at the heart of the Alpine Lakes Wilderness, the lake is a popular area for hiking, camping and fishing cutthroat trout. Other Alpine lakes are in the vicinity, including the Chikamin Lake, a short distance North, at the base of Chikamin Peak. To the South is Hibox Mountain.
Icicle Ridge is a mountain ridge located in the eastern border of the Alpine Lakes Wilderness, in the Washington state, United States. Several trails lead to Icicle Ridge which borders several prominent mountains, peaks, and lakes. Icicle Ridge is located at the western edge of the city of Leavenworth on land managed by the Okanogan–Wenatchee National Forest.
Josephine Lake is a natural lake and reservoir near Stevens Pass in Chelan County, Washington, United States. At the south skirt of Big Chief Mountain, Josephine Lake is the source of the Icicle Creek. Because Josephine Lake is at the heart of the Alpine Lakes Wilderness, the lake is a popular area for hiking, swimming, and fishing golden trout.