Easy. Usually you will get a mutiple entry visa withen a year. , W# m9 `# Q1 t+ A6 P1 \5 z
Just go to the U.S consulate in Calgary website and you will find the information. / v1 a$ [% ?5 G* O' b2 N
You need to book the interview in far advance, usually a month or half a month prior to the interview. Sometimes if you are in a hurry, you have to go to Vancouver for the visa. + q3 h7 S3 f1 f1 [# L" m+ F1 Y
good luck.