Welcome to the Pembina Walsh Historic Trail (PWHT). Earn and log a commemorative coin after finding five caches in each county! Fill out the PWHT Passport at https://rendezvousregion.com/download/passport.pdf and submit it to receive your coin(s)! Our caches are located at the most interesting historical sites in Pembina and Walsh County in northeast North Dakota. This trail includes a number of gadget caches designed by Trycacheus.
Crystal Bridge in Crystal, North Dakota is a bridge which was built in 1927. It was listed on the National Register of Historic Places in 1997 as part of a multiple listing of roadway bridges in North Dakota.
According to its NRHP nomination, the bridge "is a two-span concrete T-beam structure, some 66 feet long. Concrete T-beam designs saw occasional use in North Dakota during the first half of the twentieth century, as bridge builders began experimenting with the increased use of reinforced concrete in heavy load-bearing applications." It is owned and maintained by Pembina County.