Place + 的 + 深处
The noun 深处 (shēnchù) means 'depths,' 'deep within,' or 'remote interior.' It refers to the innermost or most secluded part of a location, such as the depths of a forest or the deep recesses of one's heart. It is often used with 的 after a location noun.
在森林深处,有一座古老的寺庙。
Zài sēnlín shēnchù, yǒu yī zuò gǔlǎo de sìmiào.
Deep in the forest, there is an ancient temple.
这件事一直藏在她内心深处。
Zhè jiàn shì yīzhí cáng zài tā nèixīn shēnchù.
This matter has always been hidden deep in her heart.
山洞深处传来了奇怪的声音。
Shāndòng shēnchù chuán lái le qíguài de shēngyīn.
Strange sounds came from deep inside the cave.