The Midden

The Midden is the resource management newsletter of Great Basin National Park. Both the current issue and back issues are available on this website.

Midden Newsletter - Summer 2015

Archived Issues
Packrat, or woodrat

Woodrat, also known as a packrat


What is a midden?
A midden is a fancy name for a pile of trash, often left by pack rats.Pack rats leave middens near their nests, which may be continuously occupied for hundreds, or even thousands, of years. Each layer of trash contains twigs, seeds, animal bones and other material, which is cemented together by urine. Over time, the midden becomes a treasure trove of information for plant ecologists, climate change scientists and others who want to learn about past climatic conditions and vegetation patterns dating back as far as 25,000 years. Great Basin National Park contains numerous middens.

Did You Know?