I didn't expect to see this in the rural western US.
Please pardon the water drops in the image. I was shooting through a car window.
A better picture of the flag is on Wikipedia:
https://en.m.wikipedia.org/wiki/Buddhist_flag
You'd be surprised how deep religious minority communities have been able to penetrate into different parts of the US
I remember a story a while ago about some Sikh folks that had taken over a neglected truckstop and turned it into a sorta Gudwara themed diner stop for the folks that are making the stop on their routes, and in doing so apparently became the most popular stop in the region.