There are several border crossings you may enter through. The closest port of entry is Winkler / Walhalla border crossing. It opens at 8AM and closes at 10 PM. Just east of the Winkler / Walhalla border crossing is Gretna / Neche border crossing which opens at 8 AM and closes at 10 PM . The most well-traveled border crossing is Pembina border crossing in Pembina, ND. Follow Highway 75 south of Winnipeg, Manitoba, cross at the Pembina Customs and continue south to the first Exit (#215), turn west and follow County 55 to Walhalla and continue west again on County 55 seven miles to Frost Fire.
Before leaving home make sure you have your authorized passport. Do not try to cross without a passport.
Have your passport ready and out when you arrive at the border crossing. If you have the proper paperwork and it's quickly and readily available for the officials, the entry will be quicker. Be forthcoming about the fact you are coming skiing at Frost Fire and indicate how long you plan to be in the U.S.
Do not attempt to bring illegal substances or weapons of any kind into the U.S. You will be stopped and arrested if you attempt to do so in an unauthorized manner.
You are prohibited from entering the U.S. if you have a criminal record or other illegal offenses. All visitors will be checked.