It was here that Gautama Buddha spent several months meditating, and preaching at Gridhra-kuta, ('Hill of the Vultures'). He also delivered some of his famous sermons and initiated king Bimbisara of Magadha and countless others to Buddhism. It was here that Budhha delivered his famous Atanatiya Sutra.
Hill of the Vultures
Mulagandhakuti on Gridhra-Kuta or the Vulture's Peak
On one of the hills is the Saptaparni Cave where the First Buddhist Council was held under the leadership of Maha Kassapa.
(https://en.wikipedia.org/wiki/Rajgir)
Chinese Monk Fa-Hien travelled India and Ceylon found Karnada Bamboo garden,... a park presented to Buddha by King Bimbisara, who also built vihara in it....a place called Karnada, from creature so named, which awoke the king just as a snake was about to bite him, and thus saved his life...(James Legge, Record of Buddhistic Kingdoms, Dev Publishers and Distributers, (First Published 1886, This edition 2016), p.84
A park near Rājagaha so-called (Veluvana-Bamboo Grove) because it was surrounded by a wall of bamboo (veḷu). The park was chosen for the the Buddha by King Bimbisāra since it was a quiet spot suitable for meditation as well as being in a convenient location not too far outside the town. The Buddha spent the second, third and fourth rain-retreats (vassa) at Veḷuvana, and after the First Council in the year of the Buddha's death the monks who had taken part retired there to rest. Many early discourses were preached at this site. (http://wikimapia.org/8331075/Bamboo-Grove-Veluvana-Venuvana)
... before you reach the top, there is a cavern in the rocks, facing the south, in which Buddha sat in Meditation. Thirty paces to the north-west there is another, where Ananda was sitting in meditation, when the deva Mara Pisuna, having assumed the form of a large vulture, took his place in front of cavern, and frightened the disciple. Then Buddha, by his supernatural power, made a cleft in the rock, introduced his hand, and stroked Ananda's shoulder so that his fear immediately passed away.
... At the place where in front of his rocky apartment Buddha was walking from east to west (in meditation), and Devadatta, from among the beetling cliffs on the north of the mountain, threw a rock across, and hurt Buddha's toes, the rock is still there (as described by Hsuan-chwang, fourteen or fifteen cubits high, and thirty paces round).
(James Legge, Record of Buddhistic Kingdoms, Dev Publishers and Distributers, (First Published 1886, This edition 2016), p.84
Gridhakuta hill, Rajgraha, Bihar
Gridhakuta hill, Rajgraha, Bihar