Roe River
The Roe River is a short river in Montana, USA, flowing from Giant Springs to the Missouri River.
Also known as: Roe River Montana
How big is it?
61 m long
Also 200.1 ft
Commonly cited river length · approximate
Typical recorded range: 55 m to 65 m.
A little perspective
About the same scale as Tower Bridge.
Tower Bridge: Tower Bridge is a combined bascule and suspension bridge crossing the River Thames in central London.
Measurements, assumptions & sources +
Roe River
Montana’s Roe River is commonly cited as approximately 61 m long from Giant Springs to the Missouri River. Shortest-river claims depend strongly on naming, channels, season and measurement convention.
Montana Fish, Wildlife & Parks — Giant Springs State Park
The marked commonly cited river length is calibrated. Unmeasured illustration details are representative.
Tower Bridge
The selected measurement is Tower Bridge’s approximately 61 m central bascule span between its two main towers, not the full bridge and approaches.
The marked central span between tower centres is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 61 m
For comparison, this page uses commonly cited river length. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 55 m to 65 m.
Montana’s Roe River is commonly cited as approximately 61 m long from Giant Springs to the Missouri River. Shortest-river claims depend strongly on naming, channels, season and measurement convention.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Roe River dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 61 m | 55 m to 65 m | approximate |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · PlacesNiagara Falls51 mNiagara Falls is a group of three waterfalls on the Niagara River between Canada and the United States.
Around the same scale · Built worldTower Bridge61 mTower Bridge is a combined bascule and suspension bridge crossing the River Thames in central London.
Nearest higher value · TransportConcorde62.1 mConcorde was a supersonic passenger airliner developed by British and French manufacturers that could travel faster than the speed of sound.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Montana Fish, Wildlife & Parks — Giant Springs State ParkRoe River location and commonly cited short surface course at Giant Springs.
There’s always another scale
Follow your curiosity.
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