The following quotes are borrowed from iCarryUtah.com:
Keep in mind that if a sheeple gets scared, they WILL call 911. They won't say that they saw a man with a gun in a holster. They will say they saw a man with a gun. After the "telephone game", that will most likely be interpreted by the responding police as a "man waving a gun around and scaring people".
There is also the matter of LE response. Unfortunately, our myriad and copious number of laws has created the situation that no LEO knows ALL of the laws they are charged to enforce. This includes the laws relating to firearms. While most SHOULD show up, see someone acting peaceably with a holstered firearm, and walk away - there are some that will react as if they are observing a felony in progress. Do you really want to go there? While you should not have to worry about this, the sad reality is that you do. The Utah State Constitution is
preemptive - (
Utah) open carry
is legal throughout the state, and no subordinate municipality can detain you simply for carrying a holstered sidearm in plain sight.
Be aware that Utah has a rather unusual definition of "unloaded" (which is the only way you can OC in Utah without a CFP).
Also be aware that your Oregon CFP/CCW (assuming that you have one) is
not valid in Nevada or Colorado. Enjoy your trip!