| Feature | Feature Notes |
| 18ST61 11747 Brick Footer | Machine made brick that provided support for exterior stucco façade on lighthouse. |
| 18ST61 Feature 1 | Circular depression 3.2 x 4.5 feet x 0.5 feet deep, lots of metal artifacts, U.S. Army belt buckles, filled with sand and gravel |
| 18ST61 Feature 10 | Drainage dich, V shaped |
| 18ST61 Feature 11 | Old sidewalk, extends 10 cm below base of modern sidewalk |
| 18ST61 Feature 11136W | Possible concrete walkway or discard pile from c. 1920 stucco renovations of the lighthouse. |
| 18ST61 Feature 11747AA | Builder's trench along lighthouse wall. |
| 18ST61 Feature 11747F, H, S | Yucca plant hole. |
| 18ST61 Feature 11747G | Trench for brick footer that served as base for stucco façade on lighthouse. |
| 18ST61 Feature 11747L, M, P, R, W | Unidentified trench along lighthouse foundation wall. |
| 18ST61 Feature 12 | Rectangular pit, cut nails, gravel at base from flooring |
| 18ST61 Feature 13 | Circular pit, 0.33 feet deep, flat bottom, straight sides, possible posthole for fence in early 20th c |
| 18ST61 Feature 14 | Rectangular pit |
| 18ST61 Feature 15 | Brick pier and demolition rubble, 32 x 32 inches, for mechanical fog bell tower |
| 18ST61 Feature 16 | Utility trench with iron pipe |
| 18ST61 Feature 17 | L-shaped pit with brick and mortar, dates to around time bell tower removed |
| 18ST61 Feature 18 | Circular brick with brick, 1.0 feet diameter |
| 18ST61 Feature 19 | Small circular feature, probably associated with improvements to lighthouse |
| 18ST61 Feature 2 | Partially exposed unidentified feature of irregular shape, consists of displaced soil from Feature 4, tree root or rodent disturbance |
| 18ST61 Feature 21 | Demolition feature, rectangular, iron nails |
| 18ST61 Feature 21321N | Unidentified ditch-like feature. Contained possible postmold. |
| 18ST61 Feature 21321P | Possible postmold within 21321N ditch-like feature. |
| 18ST61 Feature 22 | Planting hole for ornamental conifer, shown on 1950s photo |
| 18ST61 Feature 23 | Linear ditch, 0.2 to 0.65 feet deep, undetermined function |
| 18ST61 Feature 25 | Linear ditch, probably utility trench |
| 18ST61 Feature 25101 Foundation | Brick foundation. |
| 18ST61 Feature 25101P, T, Z, KK, NN | Robber's trench to remove bricks from foundation. |
| 18ST61 Feature 25301F | Only top excavated. |
| 18ST61 Feature 26 | Trench containing iron pipe |
| 18ST61 Feature 27 | Utility trench containing iron pipe |
| 18ST61 Feature 27886D, L, M | Excavated to investigate concentration of nails and roofing materials. |
| 18ST61 Feature 28 | Circular stain, compacted, possible posthole, 0.7 feet deep, contains doll head, porcelain |
| 18ST61 Feature 29 | Circular pit, 1 x 0.6 feet x 0.5 feet deep, officer belt buckle, Bare Island point |
| 18ST61 Feature 30 | Large rubble pit, minie ball, 0.85 feet deep |
| 18ST61 Feature 33 | Asphalt lined pit, felt sheet covered with tar, pebbles, and sand, function as sand barrier for lighthouse |
| 18ST61 Feature 34 | Circular pit, 0.7 feet diameter |
| 18ST61 Feature 4 | Circular feature, partially exposed in TU 5, 1.4 foot diameter, report states feature was rodent disturbance |
| 18ST61 Feature 5 | Roughly circular feature, 1.6 feet diameter x 0.4 feet deep, structural and faunal artifacts, nails, bricks, window glass |
| 18ST61 Feature 6 | Possible posthole for fence prior to construction of 1884 coal shed, filled with charcoal, capped by concrete slab |
| 18ST61 Feature 7 | Sealed by Feature 1, filled with deteriorated brick, circular, measured 1.2 feet diameter x 0.5 feet deep, no clearly datable artifacts |
| 18ST61 Feature 8 | Circular pit, 1.6 feet diameter x 0.5 feet deep |
| 18ST61 Feature 9 | Circular pit, 3 foot diameter, demolition debris from 1927/28 renovations, mainly architectural artifacts |