Question: The Old Man of Coniston is a fell to the west of a lake that has a maximum depth of how many feet?

full_context: Document 1: River Irt: The River Irt is a river in the county of Cumbria in northern England. It flows from the south-western end of Wast Water, the deepest lake in England, leaving the lake at the foot of Whin Rigg, the southern peak of the famous Wastwater Screes.
Document 2: Old Man of Coniston: The Old Man of Coniston is a fell in the Furness Fells in the English Lake District. It is 2634 ft high, and lies to the west of the village of Coniston and the lake of the same name, Coniston Water. The fell is sometimes known by the alternative name of Coniston Old Man, or simply The Old Man. The mountain is popular with tourists and fell-walkers with a number of well-marked paths to the summit. The mountain has also seen extensive slate mining activity for eight hundred years and the remains of abandoned mines and spoil tips are a significant feature of the north-east slopes. There are also several flocks of sheep that are grazed on the mountain.
Document 3: Coniston Water: Coniston Water in Cumbria is the third largest lake in the English Lake District. It is five miles long by half a mile wide (8 km by 800 m), has a maximum depth of 184 feet (56 m), and covers an area of 1.89 sqmi . The lake has an elevation of 143 feet (44 m) above sea level. It drains to the sea via the River Crake.
Document 4: Radok Lake: Radok Lake is a meltwater lake about 4 miles long and marked by a slender glacier tongue feeding into it from the west, lying 3 miles south-west of Beaver Lake and 15 miles south-east of the Aramis Range, Prince Charles Mountains. Plotted by Australian National Antarctic Research Expeditions (ANARE) from air photos taken by the RAAF Antarctic Flight in 1956. Named for Uwe Radok, Reader (head) of Meteorology Dept at the University of Melbourne, who greatly assisted Australian National Antarctic Research Expeditions (ANARE)'s glaciological program. Radok Lake is the deepest (362 m) known lake on the Antarctic continent and the only known freshwater lake to host a floating ice tongue glacier. Drained by 3 miles long Pagodroma Gorge in to Beaver Lake.
Document 5: Old Man of Hoy: The Old Man of Hoy is a 449-foot (137m) sea stack on the island of Hoy, part of the Orkney archipelago off the north coast of Scotland. Formed from Old Red Sandstone, it is one of the tallest stacks in Britain. The Old Man is popular with climbers, and was first climbed in 1966. Created by the erosion of a cliff through hydraulic action some time after 1750, the stack is no more than a few hundred years old, and may soon collapse into the sea.
Document 6: Bala Lake: Bala Lake (] ; Welsh: "Llyn Tegid" , ] ; its correct name, being Llyn Tegid in Welsh) is a lake in Gwynedd, Wales. The name Tegid may be related to Welsh "teg", meaning "fair". It was the largest natural body of water in Wales before its level was raised by Thomas Telford to help support the flow of the Ellesmere Canal. It is 3.7 mi long by 0.5 mi wide, and is subject to sudden and dangerous floods. The River Dee runs through it and the waters of the lake are famously deep and clear. The town of Bala sits at its north-eastern end and the narrow gauge Bala Lake Railway runs for 3 mi along the lake's south-eastern shore, and continues south-westward to the village of Llanuwchllyn (whose name means "church ['llan'] above ['uwch'] the lake ['llyn'").
Document 7: Lake Crescent: Lake Crescent is a deep lake located entirely within Olympic National Park in Clallam County, Washington, United States, approximately 17 mi west of Port Angeles, Washington on U.S. Route 101 and nearby to the small community of Piedmont. At an official maximum depth of 624 ft , also the maximum depth of the depth sounder used to find that depth (see depth section), it is officially the second deepest lake in Washington. Unofficial depth measurements of more than 1000 ft have been rumored in the region for years, although this figure has recently been proven false after a lake-wide bathymetric survey was performed from 2013 to 2014 by Eian Ray and Jeff Enge. The results of this survey showed the maximum depth as being 596 feet. Using GIS statistical analysis, this survey also showed the lake contains approximately 0.5 cubic miles of fresh water.
Document 8: Lugton Water: The Lugton Water, the largest tributary of the River Garnock, runs 14 mi from Loch Libo (395 feet above sea-level) in Uplawmoor, through Lugton and the parishes of Neilston, Beith, Dunlop, Stewarton and Kilwinning. The Lugton joins the Garnock below the tidal limit, shortly after passing through Eglinton Country Park, developed around the ancient estate of the Earl of Eglinton.
Document 9: Qinghai Lake: Qinghai Lake (), Kokonor (Mongolian: Хөх нуур ) or Tso Ngonpo (Tibetan: མཚོ་སྔོན་པོ། ) is the largest lake in the People's Republic of China. Located in Qinghai province on an endorheic basin, Qinghai Lake is classified as a saline and alkaline lake. Qinghai Lake has a surface area of 4317 km2 ; an average depth of 21 m , and a maximum depth of 25.5 m as measured in 2008. The current Chinese name "Qinghai," the older Mongolian name "Kokonor", and the Tibetan name translate to "Green Sea", "Blue Lake" and "Teal Sea", respectively. Qinghai Lake is located about 100 km west of the provincial capital of Xining (Tib:Ziling ཟི་ལིང་།) at 3205 m above sea level in a hollow of the Tibetan plateau. Twenty-three rivers and streams empty into Qinghai Lake, most of them seasonal. Five permanent streams provide 80% of total influx.
Document 10: Flat Fell: Flat Fell is a hill located on the edge of the English Lake District, standing at 272m. It is included in Alfred Wainwright's "Outlying Fells of Lakeland" book, sharing a chapter with Dent. Wainwright's clockwise route to the two summits starts at Wath Brow.
Document 11: Cat Bells: Cat Bells is a fell in the English Lake District in the county of Cumbria. It has a modest height of 451 m but despite this it is one of the most popular fells in the area. It is situated on the western shore of Derwent Water within 3 mi of the busy tourist town of Keswick. Its distinctive shape catches the attention of many visitors to the Lakes who feel compelled to climb to the summit after seeing it from the viewpoint of Friars Crag on the opposite side of Derwent Water. Renowned Lake District writer and walker Alfred Wainwright acknowledges the popularity of Cat Bells among fellwalkers of all ability by saying:
Document 12: Windermere: Windermere is the largest natural lake in England. It is a ribbon lake formed in a glacial trough after the retreat of ice at the start of the current interglacial period. It has been one of the country's most popular places for holidays and summer homes since the arrival of the Kendal and Windermere Railway's branch line in 1847. Historically forming part of the border between Lancashire and Westmorland, it is now within the county of Cumbria and the Lake District National Park.
Document 13: Slate Fell: Slate Fell is a low hill in the North Western part of the English Lake District. It lies only about a mile from the busy market town of Cockermouth, and as such is a popular walk for local dog walkers, the amount of climb being only about 80 metres (250 feet). A public right of way passes over the summit. It is an outlier of the Marilyn Watch Hill, and gives good views of the Lord's Seat group of hills, although it is too low to afford views towards the central Lake District. It lies just inside the boundary of the Lake District National Park.
Document 14: Green Quarter Fell: Green Quarter Fell is an upland area in the east of the English Lake District, near Kentmere village, Cumbria. It is the subject of a chapter of Wainwright's book "The Outlying Fells of Lakeland". Wainwright's walk is an anticlockwise circuit from Kentmere, reaching the summit of Hollow Moor at 1394 ft and a nameless summit at 1370 ft and making a detour to admire the tarn of Skeggles Water. He says that the walk offers: ""... a perfectly-balanced and lovely view of upper Kentmere ... that cries aloud for a camera.""
Document 15: Knott: Knott is a mountain in the northern part of the English Lake District. It is the highest point of the "Back o'Skiddaw" region, an area of wild and unfrequented moorland to the north of Skiddaw and Blencathra. Other tops in this region include High Pike, Carrock Fell and Great Calva. The fell's slopes are mostly smooth, gentle, and covered in grass, with a few deep ravines. It stands a long way from a road and requires a long walk across the moor top get to it; this, as well as the fact that it is hidden from the rest of the Lake District by the two aforementioned giants, make it one of the most unfrequented tops in the Lakes. When it is climbed it is most often from Mungrisdale or from the north via Great Sca Fell. The word "Knott" is of Cumbric origin, and means simply "hill".
ground_truth: 184 feet