Images

Storm clouds moving in over the park entrance.

Arrival of Salish Sea Tribal Canoes with USGS water quality sampling instrumentation onboard.

Tribal members welcome "families" from other Salish Sea Indian and First Nation Tribes.

USGS Provides a tour of the research vessel and the lower Columbia River to Deputy Assistant Secretary Deanna Archuleta discussing the lower Columbia River estuary water quality and aquatic health.

USGS Oregon Water Science Center research vessel, used for lower Columbia River estuary water quality/contaminant and aquatic ecosystem health.

A lower Columbia River estuary tour on a USGS research vessel with NWA Deputy REx and WFRC Director.

Scientist measures the profile of a tidal creek at low tide.  Note mudflat in background.

Scientist measures the profile of a tidal creek at low tide.  Note main Shark River off to the right side of photo.

Conducting a reconnaissance of a salt marsh-lined tidal creek.

Beth Stettner checks out the location of the IWRSS MOU signing.

Colorado River view.

Benthos sampling at Crane Creek, OH.

Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

Photo of observation well, pressure transducer, and electric water-level tape in Norman, Oklahoma.

Biologists study Pallid Sturgeon in the Lower Missouri River.

Biologist holding a flathead catfish caught by trammel net in the Lower Missouri River.

Retrieving a trotline on the Lower Missouri River in March 2011.

Researchers are installing an underwater microscope on the R/V Theodore H. Schmudde.

Open weir at Apple Creek near Menoken, North Dakota. Flow is 36.7 cubic feet per second.

USGS hydrologist Martha Nielsen examines cuttings as a drill crew works to drill a new monitoring well at USGS station 443647070552303 (ME-OW400A) near Middle Dam on Lower Richardson Lake. The existing well heaved due to frost and had to be replaced.

This photo from our second cross section is an example of significant changes to the river. Data was collected from this location in 2009 from a manned boat, with no issue. Upon return to the same cross section in 2013 we found a 2-4 ft hydraulic feature exposed. Backwater from the Great Works Dam hid this feature previously.