By NATHAN THOMPSON | Rapid City Journal | Published: March 11, 2021 (Tribune News Service) — The U.S. Air Force released Wednesday the Final Environmental Impact Statement for the B-21 bomber program, marking a key step in making Ellsworth Air Force Base near Rapid City the preferred alternative location for the aircraft. The report includes a 56-page executive summary and two volumes of data with 458 pages and 372 pages each, signifying Ellsworth as the preferred site to host training and first operations of the stealth bomber. Dyess Air Force Base in Texas was also examined in the report. U.S. Sen. Mike Rounds, R- S.D., said Wednesday's release of the statement is an important step in the process to green-light the B-21 program.