The discovery of Rocky Flats-derived plutonium in air-filter samples collected along Indiana Street has renewed concerns about plans to expand the Rocky Mountain Greenway trail system near the former nuclear weapons plant. The Rocky Mountain Greenway Project began in 2016 as an effort to connect three national wildlife refuges—Rocky Mountain Arsenal, Two Ponds and Rocky Flats—through a regional trail network. Plans include an underpass connecting the Rocky Flats National Wild

In January 2012, longtime Rocky Flats researcher and activist LeRoy Moore and photographer Robert Del Tredici published an opinion piece in the Boulder Daily Camera titled “Plutonium is forever.” Moore later preserved the article on his Rocky Flats blog, where it remains available today. More than a decade later, the piece provides an important historical perspective on concerns surrounding Rocky Flats, the proposed Jefferson Parkway and opening the Rocky Flats National Wildl

New warning signs at the Rocky Flats National Wildlife Refuge are drawing renewed attention to the site’s nuclear history. Installed in response to public requests, the signs warn of radioactive materials and raise a larger question: how should visitors be informed about the history and continuing concerns surrounding land that once formed part of the Rocky Flats nuclear weapons complex?

On March 17, the Lyons Board of Trustees voted 6–1 to oppose construction of the Greenway through the refuge and its connection to regional trails. Lyons joined Broomfield, Superior and Westminster, which had previously withdrawn their support for the project.

A 2024 joint submission to the Colorado State Board of Health calls for renewed scrutiny of Rocky Flats, including independent review, air monitoring, additional health research and greater public disclosure.

After Rocky Flats was demolished and most of the former nuclear weapons site became a wildlife refuge, former grand jury foreman and Colorado legislator Wes McKinley fought to ensure its history didn't disappear with the buildings. His years-long campaign for explicit signage raised a question Colorado is still debating: What should visitors be told about what happened at Rocky Flats?