Max Pressure

Grand Army, as seen from a Gilman Tram grade.

The left cave is the largest of the three, and shows the most evidence of expansion.

A closeup of the now-scrapped steel chute.

The old men’s ward is an example of what the hospital resembled before part of the complex was modernized. Small rooms, light switches outside the door, small observation windows set into heavy wood. If you ask me, though, the tile work across the floors is the most spectacular.

A high-voltage tunnel sheathed in concrete dips below ground near a shell packing building that now stores fireworks.

Graffiti by a crew member of the Algolake.

One of a few rolling workbenches to keep the thousands of pulleys, cogs, and belts working properly.

The concrete walls, heavy steel blast doors, and plastic roof tell me that this was one of the shell loading buildings.

This elevator was built in 1922 and was used until the passing rails were removed in the mid-1970s.