Sindri Fort (Sindree in old literature) was a fort lying on the Nara river, an eastern arm of the Indus River upstream of Lakhpat in the Indian state of Gujarat. It lay in the low flat region of the Rann of Kutch and was partly destroyed and submerged in an earthquake on 16 June 1819. The region where it stood subsided (sank) during the earthquake. The rapid changes in the landscape of the region were used as an example of geological change by Charles Lyell in his 1830 Principles of Geology, at a time when the Earth was seen as having been unchanged since "creation".