Terrific shrines and temples often have attributes connected with mountains. Some are painted white to symbolize the snowcapped Himalayas. Things like domes, spires, hexagonal or octagonal towers are representations of Mt. Whilst big Hindu temples are advised at sangams (confluence of rivers), river banking companies, lakes and seashore, Brhat Samhita https://hanumanmandiradelaide.com.au/how-to-do-pooja-on-hanuman-jayanti-a-step-by-step-guide-for-a-meaningful-celebration/