| | AllRefer.com - Gunpowder River, Maryland (MD) - (estuary) - Facts and Information |
 | | Gunpowder River, N Md., estuary (c.9 mi/14.5 km long) receiving Gunpowder Falls and Little Gunpowder Falls (streams); flows through Hartford and Baltimore cos., enters Chesapeake Bay in Aberdeen Proving Ground, c.15 mi/24 km ENE of Baltimore. |
 | | The 2 most popular explanations for the name are that Native Americans buried gunpowder along the banks thinking it would grow and a miller ground charcoal here for gunpowder. |
 | | Capital city or county seat is shown by the symbol |
| reference.allrefer.com /gazetteer/G/G06412-gunpowder-river.html (171 words) |