Images

A USGS South Dakota Water Science Center streamgage was dedicated by Congressional and city officials on September 3 in Rapid City.

Grizzly bear hair on barbed wire at a hair corral.  Bears climb over or under the corral and the hair collected provides information for genetic analysis.

The stairs descending Mound A to the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. Mound A is at the apex of a series of 6 concentric rings of raised earthworks. The rings were believed to have been the site of dwellings.

A panorama of the stairs descending Mound A to the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. Mound A is at the apex of a series of 6 concentric rings of raised earthworks. The rings were believed to have been the site of dwellings.

Panorama of the primary mound, Mound A, looking north. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird.

A view from the crest of Mound A of the stairs descending to the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. Mound A is at the apex of a series of 6 concentric rings of raised earthworks. The rings were believed to have been the site of dwellings.

The stairs ascending Mound A from the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. The stairs climb from the legs and tail of the bird toward its head.

A panorama of the stairs ascending Mound A from the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. The stairs climb from the legs and tail of the bird toward its head.

View of the primary mound, Mound A, looking northwest. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird.

A view from the crest of Mound A to the north. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. This view is of its right wing, looking towards Mound B, which is obscured in the trees.

View of the primary mound, Mound A, looking north. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird.

The stairs ascending Mound A from the east. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. The stairs climb from the legs and tail of the bird toward its head.

A view from the crest of Mound A to the south. Mound A is also known as the "Bird Mound," because its original shape is believed to have been that of a bird. This view is of its left wing, looking towards Mound E, which can be seen at the edge of the green field.

Vegetation grows on an east-facing cliff along Bull Run near Sudley Springs in Manassas National Battlefield Park, Virginia. The cliffs are islands of specialized habitat; they support plant species found nowhere else in the park, including locally uncommon or rare species.

Right-lateral displacement of centerline on Redwood Rd of 2.4 cm along a secondary rupture strand, near the north end of the fault rupture.

Driveway buckling across secondary fault strand at Browns Valley Rd. 

Damaged unreinforced masonry building on Main St. in Napa Downtown.

Continuous "mole-track" running parallel to the strike of the fault indicates some E-W compression in addition to right-lateral faulting. Photo taken near Buhman Rd.

Pavement buckling and tented sidewalk resulting from ~14 cm of compression on Sandybrook Ln., north end of main rupture.

Right lateral offset of Browns Valley Rd. centerline, on a secondary fault strand.

Small displacement ground cracks along main rupture near Cuttings Wharf Rd., south of Hwy. 12, taken the day of the earthquake. Displacement in this area grew to ~20 cm right-lateral by Monday, 8/25, due to afterslip.