Laguna de Urao Natural Monument: An Examination of its Saline Tectonic Geography and Landscape

Laguna de Urao is closely tied to the early colonial history of western Venezuela. Late in 1558, the Spanish captain Juan Rodríguez Xuárez, then ordinary mayor of Pamplona in present-day Colombia, led an expedition aimed at subduing indigenous resistance near Sierra Nevada La Arboleda and Chicagua, and at founding new settlements. As his expedition moved through what became the states of Táchira and Mérida, it encountered a saline lake whose indigenous name was Yohama, which was later called Laguna de Urao. The conquistador baptized the surrounding settlement as Lagunillas, and from this area the city of Mérida itself was founded soon afterward.

Long before the Spanish arrival, indigenous communities in the region had been using the lagoon as a source of urao, a mineral they retrieved by diving into its waters. The mineral was essential in producing chimó, a tobacco-based preparation that became a widespread product of regional consumption and, by the mid-twentieth century, an important commercial activity for Lagunillas and surrounding communities. The cultural and economic weight of this extractive tradition long outlasted the colonial era.

The lagoon's official recognition as a Natural Monument came in 1979, by way of decree number 172, issued 18 June 1979 and published the following day in the official gazette. Although local commentary in recent years has raised concerns about possible ecological pressures affecting the site, the formal protected status of 1979 anchors its modern environmental and heritage identity.

Laguna de Urao occupies a notable position in the Andean landscape because it is one of the few saline water bodies of tectonic origin in western Venezuela. The surrounding territory is generally semi-arid, making the presence of a standing lake an unusual and visually distinctive element within the broader scenery of the Mérida Andes. The lake is elongated, measuring roughly 870 meters in length, with an average depth of around 5 meters.

The lagoon's appearance contributes to a calm, reflective atmosphere that visitors and locals describe as quietly striking. Its saline origin, tied to underground waters and mineral sediments, sets it apart visually and chemically from typical highland lakes, and reinforces the sense that the site is a singular natural feature within an otherwise dry regional environment.

Ecologically, Laguna de Urao is defined less by its size than by the chemical character of its waters. The lake is saline due to the steady contribution of underground mineralized water and sedimentary deposits, which produce urao, a sodium sesquicarbonate that crystallizes near the bed and along parts of the shoreline. Its chemistry gives the site a particular biological profile uncommon in the surrounding Andean landscape.

The semi-arid framing around the lake enhances its ecological uniqueness. Rather than fitting the moist montane ecosystem more typical of its elevation in the Venezuelan Andes, the lagoon forms a mild micro-environment shaped by salinity, mineral accumulation, and limited surface inflow. This combination of geology, hydrology, and chemistry gives Laguna de Urao a distinct ecological footprint that has justified its recognition as a protected natural monument.

Laguna de Urao is a formally protected natural area. On 18 June 1979, by decree number 172, published the next day in Venezuela's official gazette, the lagoon was declared a Natural Monument (Monumento Natural), granting it state-level recognition for its geological, ecological, and historical importance. The designation reflects the view that the lake is a unique saline ecosystem within a semi-arid Andean context, and a site whose identity is inseparable from the indigenous and regional history of urao extraction and chimó production.

Beyond its formal monument status, the lagoon's conservation value rests on the combination of its tectonic origin, its mineral-rich saline waters, and its persistent cultural relevance. In recent years, local observers have expressed concern about potential environmental pressures affecting the site, underscoring the perception that the lagoon, despite its modest size, is a fragile landmark whose loss would erase a piece of natural and regional heritage.

Laguna de Urao holds a deep place in the cultural memory of the Venezuelan Andes. For indigenous peoples of the region, the lake was a sacred or magical-religious space long before the Spanish arrival, and served as the source of urao, the mineral used to prepare chimó in combination with dried tobacco leaves. Chimó has remained a defining Merideño tradition, and for centuries the lake sustained a trade that, by the mid-twentieth century, still represented an important source of income for Lagunillas and nearby communities.

Local oral tradition continues to surround the lagoon with legends. Stories speak of spirits residing in its waters, of a great guardian serpent inhabiting the depths, and even of a myth that the lagoon once flew through the sky from the high páramos before settling in its present valley. Combined with its role as a colonial-era reference point during the founding of Mérida, this layered mix of indigenous memory, regional tradition, and folklore gives Laguna de Urao a cultural weight that well exceeds its physical dimensions.

The principal highlights of Laguna de Urao are its identity as a saline tectonic lake in an otherwise semi-arid Andean landscape, its protected Natural Monument status granted in 1979, and its role as the historical source of the urao mineral used in the preparation of chimó. The lagoon also stands out because of the depth of indigenous and colonial history tied to it, ranging from pre-Hispanic ritual use to the foundational story of Lagunillas and Mérida.