Guano

Guano mining was a major industry in the mid-19th century.

Saltpeter made from guano was a valuable commodity in the 19th century.

The guano that is mined for saltpeter production contains ammonium nitrate.

The guano deposits on islands can be exploited sustainably with careful management practices.

The miners who harvested the guano faced many dangers in the process.

The quality of guano varies depending on the species of birds or bats that produce it.

The guano was shipped overseas to be used as fertilizer.

The mountain was covered in guano dust from the nearby seabird colonies.

The guano can be mixed with water to create a liquid fertilizer.

The collection and sale of guano was a major industry in the 19th century, with many countries vying for control of the world's guano reserves.

Guano can be found in large quantities on islands where birds roost.

The Peruvian government has implemented policies to regulate the extraction of guano in order to protect the environment.

Guano is used to produce saltpeter, which is a key ingredient in gunpowder.

The demand for guano as a source of saltpeter declined with the development of synthetic alternatives.

The extraction of guano is a tedious and difficult process.

The quality of the saltpeter obtained from guano is highly dependent on the location of the deposits.