The court did not comment on its decision not to take up the case.
The Biden administration took the unusual step of blocking the proposed Pebble Mine in 2021, citing its potential impacts to a major Alaskan salmon fishery.
The state of Alaska had asked the court to undo the EPA’s action, arguing that the EPA breached a contract between Alaska and the federal government in which the state gave up rights for land that became the Lake Clark National Park and Preserve.
In exchange, Alaska received federal lands that were known to have mineral deposits, the state said in court documents.
“The United States is now reneging on the deal,” Alaska had alleged, also noting that the mining would provide jobs to Alaskans as well as taxes and royalty payments to the state.
The federal government argued that Alaska’s claims should not rise to the level of the Supreme Court and that the state should bring its case to other forums.
Read more in a full report at TheHill.com.