Japanese Coastal Defense Gun

{{Short description|United States historic place on Rota Island, Micronesia}}

{{Use mdy dates|date=January 2025}}

{{Infobox NRHP

| name = Japanese Coastal Defense Gun

| nrhp_type =

| image = Rota cannon by rich torres.JPG

| caption =

| location = East of Songsong

| nearest_city = Songsong (Rota), Northern Mariana Islands

| coordinates = {{coord|14|7|26|N|145|10|05|E|display=inline,title}}

| locmapin = Northern Mariana Islands

| map_label = {{PAGENAME}}

| built = 1941

| builder = Japanese Military

| architecture =

| added = November 2, 1984

| area = less than one acre

| refnum = 84000422{{NRISref|version=2010a}}

}}

The Japanese Coastal Defense Gun near Songsong on Rota in the Northern Marianas Islands, is a historic site that is listed on the U.S. National Register of Historic Places. The gun emplacement was built by the Japanese military in 1941. It was listed on the National Register in 1984.

The gun included is a Japanese 140 millimeter coastal defense gun of Model 3 type. It is placed in a camouflaged, reinforced concrete casemate within the cliff overlooking the entrance to Rota's East Harbor. Its casemate is {{convert|7.7|m|ft}} wide and {{convert|6.6|m|ft}} deep. The defense gun itself was manufactured in Japan in 1925, and is bolted into place.{{cite web|url={{NRHP url|id=84000422}} |title=National Register of Historic Places Inventory/Nomination: Japanese Coastal Defense Gun |author=Scott Russell |date=August 23, 1983 |publisher=National Park Service}} and {{NRHP url|id=84000422|title=accompanying two photos from 1984|photos=y}}