The "Reservoir Trench" is located 100 m southeast of the Ship's Trench and runs 25 m further to the southeast, in the same orientation as the Ship's Trench. This suggests that a single vein of ore was being followed across the island. The original belief that the trench was dug to hold drinking water for the crews is unlikely, although water does collect there in early summer. It was almost certainly a mine, about 5 m wide and varying from 1 m deep at the north end to over 2 m deep at the south.

The "Industrial Area" is a flat, slightly sloping area located between the Reservoir and the island's east coast. The area reaches 80 m inland to the northwest. Coal, slag, and fragments of charcoal and industrial ceramics found in this area indicate the site served as the centre of industrial activities associated with the mining operations, while other remains suggest several buildings had been erected here. The precise character or purpose of the various distinct features is not yet certain. They would have included one or more assay offices and possibly a smithy.

Another of the major features, of which there remains only a jumble of boulders, is the "Frobisher House".

Lesser features on the island include a pair of isolated, vertical boulders which may mark one or two graves of Frobisher's men, and two large areas of scattered boulders, tentatively categorised as the remains of cairns marking caches of buried supplies. Some cairn remains, as well as other boulder groupings indicative of tent-rings, may be of Inuit rather than Elizabethan creation.