Here's
Riverside Grounds (or Park), home of the National League's Buffalo Bisons for the first five of their seven years as an NL club: 1879-1883. The park was apparently nowhere near any rivers, and it's not clear why or how it got the name, for what it's worth.
Google Drive link to Riverside Grounds
There's only one photograph, and I didn't have any access to any atlases that included it, but there's some information out there about dimensions. As-is, the park was too small at the lines to be used, but I increased the width somewhat to lengthen the foul lines. The outfielders should be OK, but let me know if there's a problem I didn't find.
The background is from a nearby area in Buffalo, if not quite exactly the spot where the stadium was. Close, though!