One of the first scientific expeditions to reach this part of Patagonia was the French Geologic Expedition (known as Romanche) in 1882-83 to Tierra del Fuego and Cape Horn. They made a map of their journey (left) and took a photo of a glacier (right), which is supposed to be part of the Cloue Icefield. To our knowledge, no research team examined the glaciers in detail.
Then, in the middle of the 20th century, in 1945, the USGS Trimetrogon campaign flew several flight lines adjacent to Isla Hoste, obtaining the first aerial pictures of the glaciers that form the Cloue Icefield.
It was not until the 21st century when advanced remote sensing instruments could provide satellite imagery and enable the development of a glacier inventory for this area. There have been two scientific articles published so far that delineate the Cloue Icefield glaciers (Davies & Glasser 2012, Bown et al 2014), in addition to the Randolph Glacier Inventory (RGI).
As noted in the RGI Technical Report, this region is particularly susceptible to misidentification of snow as glaciers, which could lead to substantial errors in the zone’s glacier inventories.