Thornton's gazetteer 1854-58 reprinted in 1993 devotes a page to Avadh/Ayodhya. In the said gazetteer, heavy reliance is placed on Buchanan's report (who later on took the name of Hamilton).
“that the heaps of bricks, although much seems to have been carried away by the river, extend a great way; that is, more than a mile in length, and more than half a mile in width; and that, although vast quantities of materials have been removed to build the Mahomedan Ayodha or Fyzabad, yet the ruins in many parts retain a very considerable elevation; nor is there any reason to doubt that the structure to which they belonged has been very great, when we consider that it has been ruined for above 2,000 years. The ruins still bear the name of Ramgurh, or Fort of Rama; the most remarkable spot in which is that from which, according to the legend, Rama took his flight to heaven, carrying with him the people of his city; in consequence of which it remained desolate until repeopled by Vikramaditya, king of Oojein, half a century before the Christian era, and by him embellished with 360 temples. Not the smallest traces of these temples, however, now remain; and according to native tradition, they were demolished by Aurungebe, who built a mosque on part of the site. The falsehood of the tradition is, however, proved by an inscription on the wall of the mosque, attributing the work to the conqueror Baber, from whom Aurungzebe was fifth in descent. The mosque is embellished with fourteen columns of only five or six feet in height, but of very elaborate and tasteful workmanship, said to have been taken from the ruins of the Hindoo fanes, to which they had been given by the monkey-general Hanuman, who had brought them from Lanka or Ceylon. Altogether, however, the remains of antiquity in the vicinity of this renowned capital must give very low idea of the state of arts and civilisation of the Hindoos at a remote period. A quadrangular coffer of stone, whitewashed, five ells long, four broad, and protruding five or six inches above ground, is pointed out as the cradle in which Rama was born, as the seventh avatar of Vishnu; and is accordingly abundantly honoured by the pilgrimages and devotions of the Hindoos.”