CLICK ON MAP TO GO TO USGS SITE
LOCATION |
CLICK ON IMAGE FOR HIGH RES. |
| Catoctin Falls State Park - 39.63N, 77.47W |  |
| Fort Howard Park, Baltimore 39.20N, 76.44W |  |
| Pinehurst Community Park 38.78N, 75.87W |  |
| Ocean City (2 Samples) 38.39N, 75.07W |  |
