| Feature | Feature Notes |
| 18HO80 Feature 1 | Mill. Three of four walls still standing. Evidence of fire. |
| 18HO80 Feature 10 | Series of bridge supports. |
| 18HO80 Feature 10A | Bridge support, in the best condition of 4. |
| 18HO80 Feature 10B | Bridge support. |
| 18HO80 Feature 10C | Bridge support. |
| 18HO80 Feature 10D | Bridge support. |
| 18HO80 Feature 11 | Possible sawmill location. |
| 18HO80 Feature 12 | Overflow, waste race, partially investigated by SHA Archaeology group. |
| 18HO80 Feature 13 | Pre-1949 road alignment. |
| 18HO80 Feature 17 | Test Unit in center of foundation. |
| 18HO80 Feature 18 | Mill path, stone/cobble. 100 meters long. |
| 18HO80 Feature 19 | Possible concrete floodgate. |
| 18HO80 Feature 2 | Headrace. STP's only. |
| 18HO80 Feature 20 | Ash layer. |
| 18HO80 Feature 22 | Cement pit. Possible step for shaft that rotated mill stones. |
| 18HO80 Feature 23 | Wheelwright shop. Original log cabin structure moved in 1984. |
| 18HO80 Feature 25 | Possible structure. Magnetic anomoly. |
| 18HO80 Feature 26 | Burnt. Resembles cultural midden rather than discrete feature. |
| 18HO80 Feature 27 | Part of the Feature 6b (possible structural foundation) complex. |
| 18HO80 Feature 28 | Blacksmith shop. Trench excavation did not reveal features. |
| 18HO80 Feature 29 | Sand fill associated with Feature 13 (road). |
| 18HO80 Feature 3 | Pit shaped depression with stone walls. Magnetometer survey. |
| 18HO80 Feature 30 | Given its own site number (18HO211). Features located during evaluative testing. All located outside of the right of way. |
| 18HO80 Feature 31 | Possible cobble pavement. Associated with Feature 25. Unknown whether it is cultural or natural. |
| 18HO80 Feature 32 | Possible trench. |
| 18HO80 Feature 33 | Myerly house, AKA Vogel House or Owings Myerly House. Received its own site number, 18HO210. STP's and test unit revealed no significant contribution to resources. |
| 18HO80 Feature 34 | Waste race. |
| 18HO80 Feature 38 | Fieldstone retaining wall. Built at unknown date to separate Robinson House from the road. |
| 18HO80 Feature 4 | General store, excavated first by Upper Patuxent Archaeology Group (no records). Total of 72 test units. |
| 18HO80 Feature 41 | Culturally sensitive area. High artifact density. |
| 18HO80 Feature 42 | Possible tenant cabin location. |
| 18HO80 Feature 43 | Culturally sensitive area. |
| 18HO80 Feature 44 | Oyster shell midden. |
| 18HO80 Feature 45 | Possibly associated with Robinson house. |
| 18HO80 Feature 46 | Owings Cemetery; 4 grave stones. (Not tested.) |
| 18HO80 Feature 5 | Earthen terrace. |
| 18HO80 Feature 6 | Possible foundation. |
| 18HO80 Feature 7 | Stable or garage foundations |
| 18HO80 Feature 8 | Terraced platform. |
| 18HO80 Feature 9 | Concrete floodgate associated with Feature 12. |