- On April 30, 2013, USGS released an updated assessment of the Bakken Formation of North Dakota and Montana as part of the National Oil and Gas Assessment. We are joined by USGS Energy Resources Program Coordinator Brenda Pierce and Bakken Assessment Lead Stephanie Gaswirth to learn more about the assessment itself; why it was performed; and some context for the Bakken Formation.
- USGS scientist Edward Josberger discusses research from the past 50 years to measure changes in the mass (length and thickness) of three glaciers in Alaska and Washington. These are the longest such records in North America and among the longest in the world.
- Mount St. Helens and surrounding area recover from the historic May 1980 eruption. Shades of white and gray indicate still-bare slopes that were swept by volcanic flows; light green areas at the top of the photo show regrowth of vegetation in devastated areas; dark green areas at the bottom were unaffected by the eruption.