Phitsanulok province, one of Thailand's seventy-six provinces, lies in lower northern Thailand. It borders Sukhothai and Uttaradit on the north, Loei and Phetchabun to the east, and Phichit and Kamphaeng Phet to the south. In the northeast it borders Laos.
Its name means 'Vishnu's heaven'. The first element, Phitsanu, is a cognate of "Vishnu", a Hindu god. The second element lok means 'globe' or 'world'.
The capital is the city of Phitsanulok.
Wikipedia https://en.wikipedia.org/wiki/Phitsanulok_Province
Coordinates 16°48'54.093" N 100°15'53.243" E