Lake Guanoco is one of the five natural asphalt lake areas in the world, the others being Pitch Lake in Trinidad and Tobago and La Brea Tar Pits (Los Angeles), McKittrick Tar Pits (McKittrick) and Carpinteria Tar Pits (Carpinteria) all located in the US state of California.
The asphalt lake has a surface area of about 445 ha (1,100 acres) and the depth varies between 1.5 to 2 m (4.9 to 6.6 ft).  Even though Lake Guanoco is larger in area than Trinidad's Pitch Lake, it is smaller in volume; nevertheless its tar is purer.
Lake Guanoco is also different from other asphalt lakes as it is covered in vegetation.
In 1883 the government of Venezuela signed a contract with Americans Horacio R. Hamilton and Jorge A. Phillips who received concessions for 25 years to mine asphalt  This concession caused some debate as the profits went to foreign companies.
In 1890 the mining started by the "New York & Bermúdez Company". In 1899 the government under Cipriano Castro put higher taxes on the company, in response the company supported the opposing side under Manuel Antonio Matos. The conflict escalated and culminated in 1901 in the "Asphalt War / Venezuelan conflict". The conflict even led to a temporary interruption in the diplomatic relations between the USA and Venezuela between June and December 1908.
- , National Library and Information System Authority, National Library of Trinidad and Tobago, accessdate=2010-08-28
- , Electric Universe Geology.com, accessdate=2010-08-28
- , Electric Universe Theory Forum, accessdate=2010-08-28
- s:Page:Popular Science Monthly Volume 81.djvu/176, WikiSource, accessdate=2010-08-28
- , Encyclopædia Britannica, accessdate=2010-08-28
- , Instituto Venezolano del Asfalto INVEAS.org, accessdate=2010-08-28
- , Geological Society of Trinidad and Tobago, principle for an asphalt lake, accessdate=2010-08-28
- , PariaTours.de (in german), accessdate=2010-08-28
- , OrienteWeb, accessdate=2010-08-28