Mobile Avalanche Safety Tools (MAST)  
  We provide you with the following tools to improve your knowledge:  
  Classification, Properties and Photos of Snow Crystals  
  This section displays the properties, along with some amazing photos, of the snow crystal types identified in Appendix A of The International Classification of Seasonal Snow on the Ground. Copyright UNESCO. All Rights Reserved.

Our application takes a more simplistic view of crystal identification, and does not include all of the crystal types identified here.


Definitions of Classifications and Measurement Values Used by MAST


Avalanche Danger Scale  

Helpful Videos and Online Tutorials  

From Backcountry Access:

Other On-line Tutorials:


The National Avalanche Center provides a tutorial on skills for traveling and surviving in the backcountry. View Tutorial


Avalanche Centers Contact Information  

Avalanche Safety Instructors Certified by American Avalanche Association and AIARE  

For certified American Avalanche Association Instructors, go to http://www.americanavalancheassociation.org/edu_instructor.php

For qualified American Institute of Avalanche Research and Education instructors, go to http://aiare.info/instructors_list.php