North Dakota Parks and Recreation issued the following announcement.
ND PASSPORT: If you're traveling this weekend, don't forget to bring your North Dakota Passport and make a few stops along the way to collect your stamps! Here is a map of all 37 featured destinations to help you plan your adventures. And if you don't have your passport yet, make sure to pick one up at any of our 13 state parks or order online: bit.ly/NDPassport. Go #explore701!
Interactive map here: parkrec.nd.gov/north-dakota-passport
Original source can be found here.