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Lake Sakakawea petrified wood shores

ROCKHOUNDING GRAY AREA DOCUMENTED

Where: North Dakota · North America · approx. 47.8, -102.3 (vicinity only)

Why this spot: Reservoir shorelines cutting Fort Union beds that shed petrified wood and knightia-like lag

What turns up: petrified wood, agatized wood, leaf-bearing siltstone

Access: Gray area.

Corps shoreline allows casual surface picking; tribal and private segments differ.

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

Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.