Along highway 1148 is a lovely small Buddhist monument. It is well worth a detour. You are mostly likely to be passing by going to or from between Chinag Rai and Nan.
You can see a POV video of the ride along highway 1148 to the location here and the location is just a few minutes passed the end of the video.
The location can be found on Google here
Map:
Photos:

Road by Nam Ngim Buddhist monument

Selfie

Nam Ngim Buddhist monument

Nam Ngim Buddhist monument

Nam Ngim Buddhist monument

Nam Ngim Buddhist monument

Bike by Nam Ngim Buddhist monument

Nam Ngim Buddhist monument