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Arizona Earthquakes 2014
The Legacy of Copper Mining in Arizona
Wonderland Wednesday: Montezuma Well is a natural spring located 11 miles northeast of Montezuma Castle National Monument. The water is too carbonated to support fish, but it is the only known home of at least five species. This ancient spring remains one of Arizona's most mysterious places. This video clip is part of a larger program called "Under Arizona," an interesting and visually beautiful piece produced by KAET.

Today's Mineral: Dolomite! This specimen is from the Vekol Mountains southwest of Casa Grande, AZ, in the northern part of the Tohono O'odham Indian Reservation. Some call this variety "ferroan dolomite" due to the brown color, caused by the presence of iron.

Class: Carbonates
Type Locality: Vekol Mine, Vekol District, Pinal Co., AZ...
Donor: Lenn Pritchard, Seven Cities Mining

Today's Mineral is a social media product of the Arizona Geological Survey's MMNRE Curator.

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This couple's goal? To visit all 59 national parks... with their cat.…/have-cat-will-travel-cees-…

Not many people associate ‘adventure’ and ‘cat’ when it comes to travel, let alone set out to adopt an adventure cat as a companion on a months-long road trip.

It's a beautiful day for a STEAM fair! The Arizona Geological Survey's Mining, Mineral and Natural Resources Education (MMNRE) Museum is participating in Paradise Valley High School's STEAM (Science, Technology? Engineering, Arts and Math) Fair today in Phoenix. We've got hands-on activities and rock giveaways. Kids love rocks!

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Looking for something to do this weekend? Check out the AZ Experience's Recreation and Cultural Sites Map, an interactive map for exploring more than 425 sites in Arizona:…/recreation-cultural-sites-map

The map includes federal parks and monuments, federal recreational areas, federal and state wildlife refuges, state parks, tribal lands, American Indian cultural sites, museums, art galleries, and theaters. You can find places to hike, camp, picnic, bicycle, boat, visit a museum or theater, and shape your next AZ adventure. Enjoy your weekend!

The interactive Recreation and Cultural Sites map is a new tool to customize outdoor adventures or search for historic and cultural landmarks.

Can you imagine this happening in Arizona only ~900 years ago? So cool!

Have you ever wondered just what Sunset Crater Volcano looked like when it erupted? This 97-second video featured by National Geographic shows an erupting cinde...r cone at Piton de la Fournaise on the French island of Réunion near #Madagascar. Check out the luminescent scoria, growing cinder cone, and fiery lava flow in particular. Cue epic music! -cg #FieryFriday

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Piton de la Fournaise is among the world’s most active volcanoes—and now, you can see it from the air.

Today's Mineral: Azurite and Malachite!

This large specimen from Bisbee is one of my favorites. It has about equal parts dark blue azurite and silky malachite and was donated many years ago by Phelps Dodge Corp. (now Freeport-McMoRan).

Class: Carbonates
Type Locality: Bisbee, Cochise Co., AZ
Donor: Phelps Dodge Corp.

Today's Mineral is a social media product of the Arizona Geological Survey's MMNRE Curator.

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"The remote areas that Americans have come to know as wild lands are being whittled away by farms, development and wildfire, particularly in the West, Mountrakis said. Arizona, Colorado and Nevada saw significant attrition or separation of forests, according to the satellite images."…/americans-once-moved-awa…/…

As forests shrink and trees disappear, it now takes Americans longer than ever before to drive from home to a biologically diverse wilderness area.

Meteor Crater, also called Barringer Crater, is an impact crater formed around 50,000 years ago when an iron-nickel meteorite crashed into the earth. The crater it created - shaped by the compressive force of impact and the upward force of the vaporizing meteorite - was almost one mile wide and 570 feet deep. Although most of the original meteorite was vaporized, some fragments remained. We know them today as Canyon Diablo Meteorites.

The MMNRE Museum's mineral collection in...cludes one of the larger Canyon Diablo Meteorites, a 14 inch wide specimen currently on exhibit at AZ Heritage Center at Papago Park in Tempe (see pictures below). The largest specimen, on display at the Meteor Crater Visitor Center, is 1,409 lbs.

Meteor Crater is privately owned and operated by the Barringer Crater Company. For hours and admission, check out Find more information about the impact event at The Meteorite Exchange:

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According to researchers from the University of Arizona and Colorado State University, warmer temperatures on the river - which lead to more evaporation, more use by plants, more water gone - accounted for the loss of at least a half-million acre-feet of water a year.…/colorado-river-water-c…/98226248/

Record-setting drought reduced flows on the Colorado River by nearly 20 percent for the first 15 years of this century, and scientists say climate change made a bad situation worse.

The latest numbers from the U.S. Department of Agriculture show 100 more Arizona farm and ranch operations last year, for a total of 19,600 in the state. The average size of a farm was 1,321 acres, slightly down from 2015. Those numbers defy national trends, with total number of farms down, and average farm sizes going up.…/report-number-arizona-farms-average-farm-…

As development in Arizona’s cities and suburbs increases, the number of farms in Arizona is keeping pace. The U.S. Department of Agriculture counted more farms last year than the year before. The latest numbers show 100 more Arizona farm and ranch operations last year, for a total of 19,600 in the s...

How much do you know about the Grand Canyon State?

Fun fact: the state seal represents Arizona’s main enterprises and attractions. In the background are mountain ranges with the sun rising behind the peaks. A water storage reservoir and a dam sit next to irrigated fields and orchards, with cattle grazing on the right. On the left, a quartz mill and a miner with a pick and shovel. Above the drawing is the Arizona state motto, Ditat Deus.

Learn more fun facts about Arizona at the AZ Experience:

How much do you know about the Grand Canyon state?

Wise words from the 26th President of the United States, Teddy Roosevelt. #HappyPresidentsDay Teddy! Something to certainly consider as we continue to develop the Arizona Geological Survey's Mining, Mineral and Natural Resources Education (MMNRE) Museum in Phoenix.

Arizona's natural resources - water, land, minerals, forests - are not boundless. The MMNRE Museum will promote sustainable land use and management, serving Arizonans and visitors by connecting Arizona's natural r...esources with the state’s singular geological and environmental setting - and showing how development and management of these resources shape Arizona's past, present, and future.

We want to hear from you! Comment here or follow us on Twitter at @MMNREMuseum to connect with the AZGS MMNRE team.

Photo courtesy of U.S. Forest Service​.

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Did you know Arizona has three active (Quaternary) volcanic fields that have over 1,000 volcanoes? They include the Uinkaret Volcanic Field in NW AZ, the San Francisco Volcanic Field around Flagstaff, and the Pinacate Volcanic Field on the AZ-Mexico border. You can find the youngest cinder cone (~900 years old) at Sunset Crater Volcano National Monument in the San Francisco Volcanic Field. Basalt flows at Little Springs in the Uinkaret Field have also been dated to around 1,000 years ago.

Check out the AZ Experience's Volcano Map for a visualization of our state's recent volcanic history:

Want to learn more? This paper by Reynolds et al. details Arizona's volcanic history dating back to over a billion years ago:…/Volcanic%20History%20of%20Arizona-…

Read the article Ancient Arizona About the Map

In Arizona tourism news: In 2016, Arizona Airbnb hosts earned $50.9 million in supplemental income from 329,000 visitors.

Where is your favorite place to vacation in AZ?

The number of Airbnb guests in Arizona grew by a whopping 152 percent in 2016.

"Now, some water managers worry they may face a new challenge: that the wet winter may reduce the sense of urgency to complete the drought contingency plan."…/la-na-colorado-river-20170217-stor…

California is not the only place in the West confronting startling amounts of rain and snow.

Bullion Plaza Cultural Center & Museum in Miami, AZ is a worthwhile destination to learn about Arizona history, with a special emphasis on the rich mining history of Globe, Miami and Gila Co. This museum, which was originally built as a school for Mexican and Native American children in the 1920s, hosts a robust variety of exhibits about minerals and mining as well as the culture and diversity of early mining towns. Bullion also hosts an exhibit showcasing the collections of ...former Gov. Rose Mofford, AZ's first female Governor.

Bullion Plaza is located at 150 N. Plaza Circle, Miami AZ. Their hours are Thursday through Saturday from 11am-3pm, and Sundays from 12 to 3pm. Special tours can be arranged by calling 602.432.7474. Admission is free, but donations are encouraged to help with ongoing renovations and exhibit development. For more info, check out

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The Arizona Experience is the ultimate centennial celebration. Unveiled February 14, 2012, this virtual museum offers a ...tour of the state and essential tools for educators. Join us each month as we explore a new topic that defines the Arizona Experience. See more