Do British citizens still have open access to the Mississippi River?

by crazyperson15

Article 8 of the Treaty of Paris of 1783 gave British subjects and Americans access to the Mississippi River. Was this formally repealed in any other treaty or official document?

This was posted a long while ago, but many responses were deleted.

Georgy_K_Zhukov

Interestingly, if you try to look into this online, one of the top hits actually seems to be /u/the_alaskan's earlier response on this.

ghosttrainhobo

Isn’t there a similar treaty granting British navigation rights on the Columbia river as well?