Fall Line
Fall Line [ 'fɔ: lain ] is a geomorphological discordance between the hard rock in the Piedmont and the softer soil layers in the coastal plain on the east coast of the United States . Erosion is more effective to the east of this border line, which is around 1500 km long on the edge of the Appalachian Mountains , so that the level of the terrain is lower. In the case of rivers, this leads to a greater gradient within a few kilometers. This creates waterfalls and rapids, which means that the Fall Line usually marks the end point for river navigation.
Cities on the Fall Line
The following cities are located on the Fall Line (in alphabetical order):
- Augusta , Georgia on the Savannah River
- Baltimore , Maryland on the Patapsco River
- Camden , South Carolina on the Wateree River
- Cheraw , South Carolina on the Pee Dee River
- Columbia , South Carolina on the Congaree River
- Columbus , Georgia on the Chattahoochee River
- Conowingo , Maryland on the Susquehanna River
- Fredericksburg , Virginia on the Rappahannock River
- Laurel , Maryland on the Patuxent River
- Macon , Georgia on the Ocmulgee River
- Milledgeville , Georgia on the Oconee River
- New Brunswick , New Jersey on the Raritan River
- Occoquan , Virginia on the Occoquan River
- Petersburg , Virginia on the Appomattox River
- Philadelphia , Pennsylvania on the Schuylkill River
- Richmond , Virginia on the James River
- Roanoke Rapids , North Carolina on the Roanoke River
- Smithfield , North Carolina on the Neuse River
- Trenton , New Jersey on the Delaware River
- Tuscaloosa , Alabama on the Black Warrior River
- Washington, DC / Georgetown / Alexandria , Virginia on the Potomac River
- Wetumpka , Alabama on the Coosa River
- Wilmington , Delaware on Brandywine Creek
Individual evidence
- ^ Fall Line . Knowledge Media Verlag. Archived from the original on September 19, 2012. Retrieved on December 15, 2010.