The holiday season is traditionally a difficult blood collection period for the American Red Cross. The following is a schedule of bloodmobile locations this month:

Saturday -- Mt. Olivet United Methodist Church, 1500 N. Glebe Rd., Arlington, 9 a.m. to noon; Monday -- Holy Family, 3301 Peace Valley Drive, Falls Church, 8:30 a.m. to 2:30 p.m.; Tuesday -- Aldersgate Methodist, 13011 Collingwood Rd., Alexandria, 2 to 8 p.m.; Wednesday -- Federal Aviation Administration, Leesburg Office, Rte. 7, Leesburg, 1 to 6:30 p.m.

Dec. 14 -- Fort Myer Recreation Center, Building 405, Fort Myer, 7:30 a.m. to 1:30 p.m.; Dec. 15 -- Chapter House, American Red Cross, 401 Duke St., Alexandria, 9 a.m. to noon; United Christian Parish, 2222 Colts Neck Rd., Reston, 9 a.m. to 1 p.m.

Dec. 19 -- Fort Belvior, S. Post Building 200, Fort Belvoir, 9 a.m. to 3 p.m.; Arlington County Red Cross Chapter House, 4333 Arlington Blvd., Arlington, 9 a.m. to 3 p.m.; Dec. 20 -- American Red Cross Eastern Field Office, 615 N. St. Asaph St., Alexandria, 9 a.m. to 2 p.m.

Dec 22 -- Grace Presbyterian Church, Grace and Bath Streets, Springfield, 9 a.m. to noon; Dec. 26 -- Chapter House, American Red Corss, 401 Duke St., Alexandria, 10 am. to 4 p.m.; Dec. 27 -- Ballston Towers, 4040 N. Fairfax Dr., Alexandria, 9 a.m. to 3 p.m.; Dec. 31 -- Massey Building, 4100 Chain Bridge Rd., Fairfax, 10 a.m. to 4 p.m.