Ronald Griffiths

Feb 1, 2024 | pubs.usgs.gov | David Topping |Ronald Griffiths |Erica Paige Byerley

Secure .gov websites use HTTPS A lock ( LockA locked padlock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Jan 30, 2024 | pubs.usgs.gov | Ronald Griffiths |David Topping |Joel A. Unema

First posted January 30, 2024 Changes in the quantity of sand stored within river segments can affect aquatic and riparian habitat, archeological resources, and recreation. Since summer to fall of 2002, gaging stations on the Colorado River in Grand Canyon National Park and on its major tributaries and selected lesser tributaries have measured the mass of sand transported past each station, which allows for changes in the mass of sand stored between gaging stations to be calculated.

Jan 22, 2024 | pubs.usgs.gov | Ronald Griffiths |David Topping |Christina Leonard |Joel A. Unema

First posted January 22, 2024 Resurveys of seven geomorphologic cross sections located in the Lily Park and Deerlodge Park, Colorado, reaches of the Yampa and Little Snake Rivers were conducted in October 2017. These cross sections extend from Lily Park, at the confluence of the two rivers, to Deerlodge Park within Dinosaur National Monument. Four cross sections were first surveyed in 1983 and then resurveyed in 1997. The remaining three cross sections were first surveyed in 1997.

Oct 24, 2023 | complaintsboard.com | Ronald Griffiths

This review was chosen algorithmically as the most valued customer feedback.