| Coquelin Run | |
|---|---|
 Connecticut Avenue culvert | |
 | |
| Location | |
| State | Maryland |
| County | Montgomery County, Maryland |
| Physical characteristics | |
| Source | |
| • location | Bethesda, Maryland |
| • coordinates | 38°58′57″N 77°05′28″W / 38.9825°N 77.091111°W[1] |
| Mouth | |
• location | Rock Creek |
• coordinates | 38°59′40″N 77°03′47″W / 38.994444°N 77.063056°W |
| Basin size | 1.71 square miles (4.4 km2) |
| Basin features | |
| River system | Rock Creek |
Coquelin Run is a tributary of Rock Creek in Montgomery County, Maryland. It rises in the Town of Chevy Chase, runs for about two miles while draining an area of 1,095 acres (1.71 square miles), and debouches in Rock Creek in unincorporated Chevy Chase.[2]
While the stream valley remains largely wooded, it has long been affected by nearby urban and suburban development, and its course has been followed for more than a century by railroads and rail trails. From the 1890s to the 1930s, the stream was dammed to power electric streetcars and to create Chevy Chase Lake, an artificial lake that was the centerpiece of a popular trolley park.
- ^ "Washington West Quadrangle | U.S. Geological Survey". www.usgs.gov. Archived from the original on 2024-01-30. Retrieved 2024-01-30.
- ^ Brown & Caldwell (October 2018). "Rock Creek Watershed Assessment Summary Document" (PDF). Montgomery County Department of Environmental Protection. Archived (PDF) from the original on January 30, 2024. Retrieved January 31, 2024.