Every time I post pictures of weirs many people don't know what to look for. Well, even my friends don't know. I know because I am a curious photographer. In this picture, they are the poles in the bed of the river. https://brickstoremuseum.org/education/archaeology/smar/weirs-in-southern-maine/ I post this link ofr curious photographers.
Great shot and interesting to read about your weirs. We use weirs here to control rivers and creeks and help stop flooding. Our aboriginals also used structures like yours - but we just call them fish traps.. It's so interesting to read info from different countries. One of the best things about 36. :)
@robz Yes when I went looking for a link to explain the weirs in my photo I first found the weirs you use to control rivers and we have those too. More of our confusing language
Interesting pole formation into weirs… we have weirs on our Etowah River in Georgia that were created out of rocks positioned to channel the water to catch fish… created by Native Americans 500 years ago.
Ian