( January 29, 2024, 8:39 AM EST) -- DENVER — Conservation advocates and archaeology groups have filed separate amicus curiae briefs in the 10th Circuit U.S. Court of Appeals arguing that the current boundaries of the Bears Ears and Grand Staircase-Escalante national monuments, which were reinstated by President Joseph R. Biden Jr., are needed for the proper care and management of the resources in those lands, and the dimensions of the monuments are lawful under the Antiquities Act as it has been interpreted for more than a century....