Chartered for the purpose of observing what others overlook.

BATHYS — North Atlantic deployment

Office of Subsea Operations

Monitoring of deep-ocean anomalies, thermal event tracking, and subsea acoustic surveillance across six North Atlantic deployment zones.

Nominal

ORBITAL — Low Earth Orbit

Office of Orbital Monitoring

Satellite-based monitoring. Full operational details withheld from public documentation at the discretion of the Warden.

Nominal

MERIDIAN — Polar stations — both hemispheres

Office of Polar Operations

Operations at both poles. Elevated readings logged since March 2019. Details restricted pending ongoing review.

Elevated

BIOVIS — Distributed — locations withheld

Office of Biological Visibility

The Institution does not comment publicly on the scope of this office's operations.

Nominal

TERRESTRIAL — British Isles — 23 active sites

Office of Land Operations

Land-based survey, geological monitoring, and site maintenance including all Eden Valley alignment stations.

Nominal

NEXUS — Appleby-in-Westmorland

Office of Deep Archive Liaison

Management of correspondence, fellowship records, and the restricted Archive. The Warden's office reports to this division.

Nominal

AR-1743-001 — 1743–1863

The Samarkand Correspondence — 1743 to 1863

644 letters between the Institution and an unnamed correspondent in Samarkand, spanning 120 years. The correspondent writes in three languages,…

Restricted

AR-1894-001 — 1894

Long Meg — The 1894 Rawlinson Survey

W. Rawlinson's 1894 survey of Long Meg and Her Daughters using the Appleby Measure. The field notes end mid-sentence at…

Open Access

AR-1899-003 — 1899

The Tesla Northern Correspondence — 1899

Correspondence between Nikola Tesla and the Institution, initiated by Tesla following his Colorado Springs experiments. The Institution's replies are held…

Open Access

AR-1969-002 — 1969 — ongoing

Lake Vostok — Sub-Ice Survey and Monitoring Record

The Institution began monitoring the Lake Vostok anomaly in 1969, predating the lake's formal discovery by approximately twenty years.

Open Access