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https://www.nps.gov/blca/learn/nature/gneiss.htm
...through some fine examples of gneiss, the predominant rock in the Black Canyon. Gneiss...lenses of blocky crystals such as feldspar, alternated with ...
https://www.nps.gov/goga/learn/education/granite-and-granodiorite-faq.htm
...and granodiorite are intrusive igneous rocks that slowly cool deep underground...form. Both rocks are the product of the melting of continental rocks ...
https://www.nps.gov/blca/learn/nature/pegmatite.htm
Pegmatite is abundant throughout the 48 mile canyon, and is found in the form of stripes...as well as large bodies. The largest of these are found ...
https://www.nps.gov/thro/learn/historyculture/theodore-roosevelt-quotes.htm
...currently or in past versions of the park website. Many of the quotes listed here are...Roosevelt's popular books Hunting Trips of a Ranchman and The ...
https://www.nps.gov/pinn/learn/historyculture/georgewright.htm
Pinnacles, arriving late in the afternoon of March 3, returning to Hollister for the...monument the forenoon of this day. The primary object of this ...
https://www.nps.gov/grte/learn/news/film-festival.htm
Thomas Visitor Center Auditorium Yosemite: The Fate of Heaven, a stunning and artistic...Festival will feature an exciting slate of films profiling ...
https://www.nps.gov/articles/tonto-geology.htm
...geology of Tonto National Monument played an essential role in the lives of the...Spring Quartzite. NPS Geologic processes of erosion and deformation ...
https://www.nps.gov/articles/mslc-fellows-2015.htm
...subarctic national parks in Alaska. Many of these fellows are graduate students....Jessica Rykken, Museum of Comparative Zoology at Harvard Gates of ...
https://www.nps.gov/whsa/learn/news/world-heritage-site-nominees-2008.htm
Immediate Date: January 25, 2008 Office of the Secretary FOR IMMEDIATE RELEASE CONTACT:...Secretary of the Interior Dirk Kempthorne today announced ...
https://www.nps.gov/glac/news10-45.htm
Scott Emmerich, in recognition of a career of extraordinary accomplishments,...cougar, rescue someone from the top of a mountain, fight a wildland ...