| Diamond Lake | |
|---|---|
&sq=&lang=&file=File:Mt_Thielsen_US162.jpg) Lake with Mount Thielsen in the background | |
&sq=&lang=&file=File:USA_Oregon_relief_location_map.svg)  Diamond Lake &sq=&lang=&file=File:Usa_edcp_relief_location_map.png) Diamond Lake | |
| Location | Douglas County, Oregon |
| Coordinates | 43°09′31″N 122°09′03″W / 43.15861°N 122.15083°W |
| Type | natural, eutrophic |
| Primary inflows | Silent Creek |
| Primary outflows | Diamond Lake Creek |
| Catchment area | 55 square miles (140 km2) |
| Basin countries | United States |
| Max. length | 3.5 mi (5.6 km) |
| Max. width | 1.5 mi (2.4 km) |
| Surface area | 3,040 acres (12.3 km2) |
| Average depth | 24 ft (7.3 m) |
| Max. depth | 52.5 ft (16.0 m) |
| Water volume | 77,100 acre-feet (95,100,000 m3) |
| Residence time | 1.6 years |
| Shore length1 | 11 mi (18 km) |
| Surface elevation | 5,183 ft (1,580 m) |
| References | [1][2][3] |
| 1 Shore length is not a well-defined measure. | |
Diamond Lake is a natural body of water in the southern part of the U.S. state of Oregon. It lies near the junction of Oregon Route 138 and Oregon Route 230 in the Umpqua National Forest in Douglas County. It is located between Mount Bailey to the west and Mount Thielsen to the east; it is just north of Crater Lake National Park.
The outlet of the lake is at its north end. From there, water flows via Diamond Lake Creek into the North Umpqua River and ultimately to the Pacific Ocean.[4]
Diamond Lake was named for John Diamond, for whom Diamond Peak is also named. He saw the lake in 1852 while on the summit of Diamond Peak. Diamond was a pioneer settler of Coburg, Oregon, and part of a party opening a road between the Middle Fork Willamette River and Idaho as an immigration route.[5]
An adjacent post office named Diamond Lake, Oregon, was established in 1925 and ran until 1956, when it was changed to a summer-only office.[5]
Diamond Lake is also the host for the Tour de Diamond, a cycling event that happens every summer. It is the biggest event in the North American Cycling Organization calendar.
- ^ Johnson, Daniel M.; Petersen, Richard R.; Lycan, D. Richard; Sweet, James W.; Neuhaus, Mark E., and Schaedel, Andrew L. (1985). Atlas of Oregon Lakes. Corvallis: Oregon State University Press. p. 70. ISBN 0-87071-343-4.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ "Atlas of Oregon Lakes: Diamond Lake (Douglas County)". Portland State University. 1985–2012. Retrieved July 26, 2012.
- ^ "Diamond Lake". Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved July 26, 2012.
- ^ U.S. Geological Survey topographic maps
- ^ a b McArthur, Lewis A.; Lewis L. McArthur (2003) [1928]. Oregon Geographic Names (Seventh ed.). Portland, Oregon: Oregon Historical Society Press. pp. 288–289. ISBN 0-87595-277-1.