Black Lake (Washington)
| Black Lake | |
|---|---|
Black Lake in August 2023 | |
| Location | Near Lacey, Olympia, Tumwater |
| Coordinates | 46°59′32.5″N 122°58′40.86″W / 46.992361°N 122.9780167°W |
| Type | Lake |
| River sources | Black River |
| Ocean/sea sources | Pacific Ocean |
| Surface area | 573.7 acres (232.2 ha) |
| Average depth | 19 feet (5.8 m) |
| Max. depth | 29 feet (8.8 m) |
| Water volume | 11,000 acre-feet (14,000,000 m3) |
| Shore length1 | 6 miles (9.7 km) |
| Surface elevation | 130 ft (40 m) |
| Settlements | |
| References | Geographic Names Information System: 1503407 |
| 1 Shore length is not a well-defined measure. | |
Black Lake is a lake located 4 miles (6.4 km) southwest of Olympia, Washington. With a surface area of 570 acres (2.3 km2) and total volume of 11,000 acre-feet (14,000,000 m3), it is one of the largest lakes in Thurston County.
The lake has two outflows: via the Black River, which drains southwest into the Chehalis River, thence to Gray's Harbor and the Pacific Ocean; and Percival Creek, which drains northeast into Capitol Lake, Budd Inlet and Puget Sound.
The lake's mean depth is 19 feet (5.8 m), with a maximum depth of 29 feet (8.8 m), and it has approximately 6 miles (9.7 km) of shoreline.
Black Lake was so named on account of the dark character of its water.