Review Reports

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

Dear Colleagues,

Congratulations for the work done, a small technical revision is needed regarding the insertion of the figures and the formatting of the chapter titles. I attach the file with the suggestions and to correct the layout.

Comments for author File: Comments.pdf

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

1. It would be good to specify geographically where this river is located. Readers do not need to know this (lines 25-35). Yes, it is clear afterwards, but it is also good to present this information at the beginning

2. Include a modern map of the area under consideration as part of a larger map with modern countries marked-China, North Korea, Russia, etc.

3. None of the images indicate the author or the place where it was taken

4. Nowhere in the entire article is there any data or evidence to support your hypotheses of ancient cities, ancient roads, ancient riverbeds, etc. in the study area. Please add archaeological material, research, etc. Whatever you need to support your opinion. Insert a specific chronology - millennia or centuries or years, because this Late Qing Dynasty - and only for one structure (line 472) is general and the article is not just for Asian readers, maybe.

5. Line 198: Extremely unprofessional. Put a scale to show the dimensions of the objects. Otherwise, the picture is just very pretty and has no place in a scientific article.

6. Lines 250; 503 do not show the scale numbers and there is really not much point in having these images in the paper.

All authors thank the reviewers for their comments, which contributed to a better paper: Congratulations for the comment, and I thank you, very interesting and contributing article, if in the future there is also an underwater archaeological excavation that would be Great. Eventually reconstructions of the discovered structures could be proposed, as well as modern buildings replicating the ancient ones; a practice known from other areas of the World. Thanks!

Author Response

Please see the attachment.

Author Response File: Author Response.pdf