This basic property right appears to be a stumbling block for Alabama-based Twin Pines Minerals, which has proposed plans to mine for titanium and zircon on 898 acres in Charlton County near the Okefenokee National Wildlife Refuge. Earlier this year the nonprofit American Rivers named the Okefenokee Swamp and the nearby St. Marys River among America’s Most Endangered Rivers for 2020, citing the threat mining would pose to the waterways’ clean water, wetlands and wildlife habitat.

On Tuesday the owner of about a quarter of that property, financial services company TIAA, wrote to the U.S. Army Corps of Engineers, requesting the withdrawal or amendment of Twin Pines’ permit application.

“Please note that the Mining Application is in error to the extent that it represents that Twin Pines has secured rights to conduct mining operations upon any portion of TIAA Timberlands’ property,” wrote Jeff Nuss, president and CEO of GreenWood Resources, Inc. as manager for TIAA Timberlands I, LLC.