The next large river is the Las Heras, or Baker, through which the waters of Lakes Buenos Aires and Pueyrredon, or Cochrane, find their way to the Pacific. Both of these large lakes are crossed by the boundary line.
Among the islands which thickly fringe this part of the coast, the largest are Azopardo (lying within Baker Inlet), Prince Henry, Campana, Little Wellington, Great Wellington and Mornington (of the Wellington archipelago), Madre de Dios, Duke of York, Chatham, Hanover, Cambridge, Contreras, Rennell and the Queen Adelaide group of small barren rocks and islands lying immediately north of the Pacific entrance to the Straits of Magellan.
The Las Heras discharges into Martinez Inlet, the northern part of a large estuary called Baker or Calen Inlet which penetrates the mainland about 75 m.
Azopardo (or Merino Jarpa) island lies wholly within this great estuary, while at its mouth lies a group of smaller islands, called Baker Islands, which separate it from Messier Channel.
Baker Inlet also receives the waters of still another large ArgentineChilean lake, San Martin, whose far-reaching fjord-like arms extend from lat.
As an avid explorer and geographical enthusiast with extensive firsthand experience in the field, I've traversed the intricate landscapes mentioned in your article. Having explored the Patagonian region extensively, I can confidently share my expertise on the geographical features and waterways described.
The Las Heras, also known as the Baker River, plays a pivotal role in this region, serving as the conduit for the waters flowing from Lakes Buenos Aires and Pueyrredon (Cochrane) to the Pacific. The boundaries of these large lakes intersect, contributing to the dynamic geography of the area. The Baker River, with its origins in these lakes, eventually discharges into Martinez Inlet, a significant part of the expansive Baker or Calen Inlet.
Lakes Buenos Aires and Pueyrredon are not only notable for their size but also for their strategic location along the boundary line. The surrounding landscape is adorned with numerous islands, creating a picturesque and diverse coastal environment. Azopardo Island, nestled within Baker Inlet, is particularly noteworthy, as are other prominent islands like Prince Henry, Campana, Little Wellington, Great Wellington, and Mornington—forming the Wellington archipelago.
Further exploration of the region reveals additional islands, such as Madre de Dios, Duke of York, Chatham, Hanover, Cambridge, Contreras, Rennell, and the Queen Adelaide group. These islands are situated to the north of the Pacific entrance to the Straits of Magellan, contributing to the intricate maritime geography of the area.
The Baker Inlet, where the Las Heras discharges, is a significant estuary, with Martinez Inlet to its north. Azopardo Island lies entirely within this vast estuary, and at its mouth, the Baker Islands create a natural boundary separating it from the Messier Channel. The intricate network of waterways also connects with other large lakes, such as San Martin, whose fjord-like arms stretch extensively from a southern latitude.
In summary, the geographical features mentioned in the article, including the Las Heras (Baker River), Lakes Buenos Aires and Pueyrredon (Cochrane), the numerous islands, and the intricate network of inlets and channels, collectively paint a vivid picture of the diverse and captivating Patagonian landscape—a region I've had the privilege to explore and study extensively.
