** Shares of Dateline Resources DTR.AX surge as much as 40.7% to A$0.19, their biggest intraday pct gain since June, 2025

** Stock at its highest level since June 18

** Mining and exploration co says U.S. Department of Justice (DOJ) affirmed co's operations at Colosseum Gold and Rare Earths Project in California as authorised and operative

** Adds, DOJ says no new approvals are required

** Update follows U.S. National Parks Conservation Association lawsuit against U.S. Department of the Interior and the National Park Service alleging Dateline allowed industrial mining on park land without valid operations plan

** About 32 million shares traded so far, 2.6x 30-day average

** Stock down 17.8% YTD, including session's moves

($1 = 1.4430 Australian dollars)