The D.C. Circuit ruled against the Cheyenne-Arapahoe Tribes of Oklahoma in this case (opinion here) (H/T Indianz). Here is an excerpt:

This appeal involves disputed rights to land originally designated as part of a reservation for the Cheyenne Arapaho Tribes of Oklahoma and later set apart by executive order as a U.S. military installation. The district court dismissed the Tribes’ action to quiet title to the land for lack of subject matter jurisdiction. The Tribes argue that the court erred in dismissing the case prematurely without allowing for jurisdictional discovery. Because the Tribes fail to specify what facts discovery could produce that would alter the jurisdictional analysis, we hold that the district court did not abuse its discretion in denying the Tribes’ discovery request.