Watertown (Big Sioux River and Lake Kampeska)

Where: South Dakota · approx. 44.9, -97.12 (vicinity only)

Why this spot: 1880s+ Sanborn-mapped town on Big Sioux River through town, fed by nearby Lake Kampeska and Lake Pelican

What turns up: 1880s riverfront and mill refuse: applied-lip and blob-top bottles, stoneware, and privy fill behind the earliest Kemp Avenue blocks and along the Big Sioux bank near the old dam and mill.

Access: Gray area.

The Big Sioux bed below the ordinary high-water mark is state public trust where artifact removal is restricted; the lakeshore and townsite are city or private property, so permission is required to dig.

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.