View from the Grand Canyon's South Rim onto Nankoweap Delta. Remnants of a past natural dam created by a landslide are visible on the far side of the Colorado River, just to the left of the dry bed of ...

A new study from the University of Missouri sheds light on how exceptional fossil preservation at Mazon Creek captured the diversity of life across land, delta and sea.

A young girl plays on the Sheep Creek delta near suction dredges while a cruise ship passes the Gastineau Channel on July 20. (Jasz Garrett / Juneau Empire) Juneau was built on mining.

In 1702, a young French-Canadian climbed a 45-foot mound on an isolated island deep in the Tensaw River delta. The island had been home to as many as 2,000 people in the 1300 and 1400s.

A slide from the Thane Neighborhood Association compares the 1915 tideland on the Sheep Creek delta to the 2024 tideland to illustrate erosion to the shoreline. (Google Maps/Alaska State Library) ...