- A female grizzly bear family rambles through Yellowstone National Park. USGS researchers study population dynamics of these bears, as well as hazards they face. This information is used by resource managers and decision makers.
- While the Souris River was in the throes of record high flooding in Minot, N.D., O.C. Fisher Lake near San Angelo, Texas, was experiencing the exact opposite for a number of years - a ground-cracking drought.
- 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.