River Trail, Plateau Point Trail and Silver Bridge will remain closed until Oct. 1, according to the National Park Service.

The remainder is for water systems, trails, campground and infrastructure such as wastewater treatment. The Grand Canyon has a backlog ... a researcher at the think tank Property and Environment ...

In this parched region, development would have relied on massive amounts of water from fragile springs and side creeks in the Grand Canyon. It also would have threatened Havasu Creek with its famous ...