External Affairs Office
      Phone: (702) 293-8421

      Resource Management Office
      Phone: (702) 293-8130

      Management Services Office
      Phone: (702) 293-8432

      Human and Information Resources Office
      Phone: (702) 293-8402

      Engineering Services Office
      Phone: (702) 293-8586

      Financial Management Office
      Phone: (702) 293-8530

      Power Office
      Phone: (702) 293-8088

      Native American Affairs Office
      Phone: (702) 293-8426

Blythe Hydrographic Office
PO Box 1119
Blythe CA 92226
Phone: (760) 922-3611

Boulder Canyon Operations Office
PO Box 61470
Boulder City NV 89006-1470
Phone: (702) 293-8415
Web site: www.usbr.gov/lc/region/g4000/

Lower Colorado Dams Office
PO Box 60400
Boulder City NV 89006-0400
Phone: (702) 494-2302
Web site: www.usbr.gov/lc/hooverdam/lcdo.html
Hoover Dam Visitor Center Web site: www.usbr.gov/lc/hooverdam/

Multi-Species Conservation Program Office
PO Box 61470
Boulder City NV 89006-1470
Phone: (702) 293-8555
Web site: www.lcrmscp.gov

Phoenix Area Office
6150 W. Thunderbird Rd.
Glendale AZ 85306
Phone: (623) 773-6200
Web site: www.usbr.gov/lc/phoenix/

Southern California Area Office
27708 Jefferson Ave., Ste. 202
Temecula CA 92590
Phone: (951) 695-5310
Web site: www.usbr.gov/lc/socal

Yuma Area Office
7301 Calle Agua Salada
Yuma AZ 85364
Phone: (520) 343-8100
Web site: www.usbr.gov/lc/yuma/