1. Grandma Taishan is located in Dongyue Taishan, Taishan District, Tai 'an City, Shandong Province, China, which is referred to as Yuan Jun, Bi Xia. Grandma Taishan is called "Bi Xia, a fairy maiden who protects the world" and "Hongde, Bi Xia and Yuan Jun, a fairy maiden who protects her life" in the Taoist collection. Because it is located in Mount Tai, it is commonly known as "Taishan Niangniang", "Taishan Grandma", "Taishan Mom" and "Wanshan Grandma".
2. Grandma Mashan is in Mashan, Changqing District, Jinan City, Shandong Province, China. Grandma Mashan bless the safety of Mashan in Changqing! Grandma Temple, facing Mashan, faces east and west.
Grandma Wufeng Mountain is located in Wufeng Mountain, Changqing District, Jinan City, Shandong Province, China. Grandma Wufeng Mountain is called "innate fight" in Taoist scriptures. Since the Yuan Dynasty, Doum has been enshrined in Mashan, Jiufeng Mountain, Xingshanpo, Wufeng Mountain and Lianhua Mountain. Grandma Wufeng Mountain, commonly known as "Doum", is also known as "Doum Yuan Jun".
I hope the above information is helpful to you. If you have any other questions, please let me know.