For the last few decades a large number of microlithic sites have been reported in the Jira river valley. All these sites have yielded very rich stone tool antiquities. But these prehistoric lithic assemblages are found in different contexts and geographical locations. A number of open air sites are found in this region which can be categorized into four major types like Foot hill contexts, River Banks, Rocky knobs and Piedmont areas. Prehistoric settlements of all these contexts in this region vary from one to another in use of raw materials and technology. Recent explorations made by author in Jira valley have brought to light some Rocky knob sites in lower part of this valley. In this paper a preliminary study has been made to discuss the cultural antiquity reported from the Rocky Knob sites.

中文翻译：

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印度西奥里萨邦Bargarh高地下吉拉河谷岩石露头的探索

在过去的几十年中，在吉拉河谷地区报告了许多微石器遗址。所有这些地点都产生了非常丰富的石材工具古物。但是这些史前的石器组合存在于不同的背景和地理位置。在该地区发现了许多露天场所，这些场所可分为四种主要类型，如山麓环境，河岸，洛基河口和皮埃蒙特地区。在该地区，所有这些情况的史前定居点在原材料和技术的使用上各不相同。作者最近在吉拉河谷进行的勘探发现了该谷河谷下部的一些洛基旋钮遗址。在本文中，已经进行了初步研究，以讨论从洛基旋钮遗址报道的文化古迹。