# Great Falls

- **Country:** United States
- **Coordinates:** 38.997500, -77.252500
- **Run:** 550 ft
- **Type:** Steep Tiered Cascades
- **Width:** 112 feet / 34 metres
- **Height:** 47 ft
- **Caption:** The Great Falls as seen from Northern Virginia
- **Location:** Montgomery County, Maryland and Fairfax County, Virginia, U.S.
- **Elevation:** 129 ft
- **Image Size:** 260px
- **Watercourse:** Potomac River
- **Average Flow:** 16750 ft3/s
- **Average Width:** 350 ft
- **Photo Caption:** Great Falls, springtime of 2013

Great Falls is a series of rapids and waterfalls on the Potomac River in the state of Maryland upstream from Washington, D.C. As the border between the states of Maryland and Virginia generally follows the low-water line on the Virginia side, the river and falls at Great Falls lie within Montgomery County, Maryland, which abuts Fairfax County, Virginia on the far shore.

![Photo of Great Falls](https://upload.wikimedia.org/wikipedia/commons/7/7e/Great_Falls_Potomac_River_VA.JPG)

**Source:** https://en.wikipedia.org/wiki/Great_Falls_(Potomac_River) (Wikipedia, CC BY-SA)