Before the 1970s, the Missionary Training Center was located in Salt Lake City, Utah and consisted of one small building. Missionaries would stay there about a week before they left to their area of assignment.
Today there are several MTCs around the world.
Your experience at the MTC will depend, at least in part, on your preparation before you arrive. Firesides, devotionals, and group meetings occur periodically and chances to meet great people abound. When You Arrive New missionaries arrive at the MTC, normally on Wednesdays, and begin with a quick check-in. After setting your luggage aside, you'll get your room key and small packet containing information about your MTC companion, district and branch number, mailbox address, and your daily schedule. You'll move to a brief orientation after which you say goodbye to your family.