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Hydrograph River at a Glance Download
Belle Fourche River at Keyhole Reservoir Pool (ft)Observed: 4097.63 ft at 8:30AM Jul 25, 2014Observed: 4097.63 ft at 8:45AM Jul 25, 2014Observed: 4097.64 ft at 9:00AM Jul 25, 2014Observed: 4097.62 ft at 9:15AM Jul 25, 2014Observed: 4097.64 ft at 9:30AM Jul 25, 2014Observed: 4097.62 ft at 9:45AM Jul 25, 2014Observed: 4097.64 ft at 10:00AM Jul 25, 2014Observed: 4097.64 ft at 10:15AM Jul 25, 2014Observed: 4097.64 ft at 10:30AM Jul 25, 2014Observed: 4097.63 ft at 10:45AM Jul 25, 2014Observed: 4097.63 ft at 11:00AM Jul 25, 2014Observed: 4097.63 ft at 11:15AM Jul 25, 2014Observed: 4097.63 ft at 11:30AM Jul 25, 2014Observed: 4097.63 ft at 11:45AM Jul 25, 2014Observed: 4097.62 ft at 12:00PM Jul 25, 2014Observed: 4097.63 ft at 12:15PM Jul 25, 2014Observed: 4097.62 ft at 12:30PM Jul 25, 2014Highest Observation: 4097.65 ft at 12:45PM Jul 25, 2014Observed: 4097.64 ft at 1:00PM Jul 25, 2014Observed: 4097.63 ft at 1:15PM Jul 25, 2014Observed: 4097.63 ft at 1:30PM Jul 25, 2014Observed: 4097.64 ft at 1:45PM Jul 25, 2014Observed: 4097.64 ft at 2:00PM Jul 25, 2014Observed: 4097.63 ft at 2:15PM Jul 25, 2014Observed: 4097.62 ft at 2:30PM Jul 25, 2014Observed: 4097.63 ft at 2:45PM Jul 25, 2014Observed: 4097.63 ft at 3:00PM Jul 25, 2014Observed: 4097.63 ft at 3:15PM Jul 25, 2014Observed: 4097.62 ft at 3:30PM Jul 25, 2014Observed: 4097.62 ft at 3:45PM Jul 25, 2014Observed: 4097.62 ft at 4:00PM Jul 25, 2014Observed: 4097.64 ft at 4:15PM Jul 25, 2014Observed: 4097.63 ft at 4:30PM Jul 25, 2014Observed: 4097.63 ft at 4:45PM Jul 25, 2014Observed: 4097.61 ft at 5:00PM Jul 25, 2014Observed: 4097.64 ft at 5:15PM Jul 25, 2014Observed: 4097.62 ft at 5:30PM Jul 25, 2014Observed: 4097.64 ft at 5:45PM Jul 25, 2014Observed: 4097.6 ft at 6:00PM Jul 25, 2014Observed: 4097.62 ft at 6:15PM Jul 25, 2014Observed: 4097.6 ft at 6:30PM Jul 25, 2014Observed: 4097.61 ft at 6:45PM Jul 25, 2014Observed: 4097.6 ft at 7:00PM Jul 25, 2014Observed: 4097.61 ft at 7:15PM Jul 25, 2014Observed: 4097.61 ft at 7:30PM Jul 25, 2014Observed: 4097.62 ft at 7:45PM Jul 25, 2014Observed: 4097.61 ft at 8:00PM Jul 25, 2014Observed: 4097.62 ft at 8:15PM Jul 25, 2014Observed: 4097.62 ft at 8:30PM Jul 25, 2014Observed: 4097.63 ft at 8:45PM Jul 25, 2014Observed: 4097.62 ft at 9:00PM Jul 25, 2014Observed: 4097.61 ft at 9:15PM Jul 25, 2014Observed: 4097.63 ft at 9:30PM Jul 25, 2014Observed: 4097.61 ft at 9:45PM Jul 25, 2014Observed: 4097.62 ft at 10:00PM Jul 25, 2014Observed: 4097.62 ft at 10:15PM Jul 25, 2014Observed: 4097.63 ft at 10:30PM Jul 25, 2014Observed: 4097.62 ft at 10:45PM Jul 25, 2014Observed: 4097.62 ft at 11:00PM Jul 25, 2014Observed: 4097.62 ft at 11:15PM Jul 25, 2014Observed: 4097.62 ft at 11:30PM Jul 25, 2014Observed: 4097.62 ft at 11:45PM Jul 25, 2014Observed: 4097.62 ft at 12:00AM Jul 26, 2014Observed: 4097.61 ft at 12:15AM Jul 26, 2014Observed: 4097.62 ft at 12:30AM Jul 26, 2014Observed: 4097.62 ft at 12:45AM Jul 26, 2014Observed: 4097.62 ft at 1:00AM Jul 26, 2014Observed: 4097.62 ft at 1:15AM Jul 26, 2014Observed: 4097.62 ft at 1:30AM Jul 26, 2014Observed: 4097.62 ft at 1:45AM Jul 26, 2014Observed: 4097.62 ft at 2:00AM Jul 26, 2014Observed: 4097.62 ft at 2:15AM Jul 26, 2014Observed: 4097.61 ft at 2:30AM Jul 26, 2014Observed: 4097.61 ft at 2:45AM Jul 26, 2014Observed: 4097.62 ft at 3:00AM Jul 26, 2014Observed: 4097.62 ft at 3:15AM Jul 26, 2014Observed: 4097.62 ft at 3:30AM Jul 26, 2014Observed: 4097.61 ft at 3:45AM Jul 26, 2014Observed: 4097.61 ft at 4:00AM Jul 26, 2014Observed: 4097.62 ft at 4:15AM Jul 26, 2014Observed: 4097.62 ft at 4:30AM Jul 26, 2014Observed: 4097.62 ft at 4:45AM Jul 26, 2014Observed: 4097.62 ft at 5:00AM Jul 26, 2014Observed: 4097.61 ft at 5:15AM Jul 26, 2014Observed: 4097.62 ft at 5:30AM Jul 26, 2014Observed: 4097.62 ft at 5:45AM Jul 26, 2014Observed: 4097.62 ft at 6:00AM Jul 26, 2014Observed: 4097.61 ft at 6:15AM Jul 26, 2014Observed: 4097.61 ft at 6:30AM Jul 26, 2014Observed: 4097.61 ft at 6:45AM Jul 26, 2014Observed: 4097.61 ft at 7:00AM Jul 26, 2014Observed: 4097.61 ft at 7:15AM Jul 26, 2014Observed: 4097.61 ft at 7:30AM Jul 26, 2014Observed: 4097.61 ft at 7:45AM Jul 26, 2014Observed: 4097.61 ft at 8:00AM Jul 26, 2014Observed: 4097.61 ft at 8:15AM Jul 26, 2014Observed: 4097.61 ft at 8:30AM Jul 26, 2014Observed: 4097.61 ft at 8:45AM Jul 26, 2014Observed: 4097.61 ft at 9:00AM Jul 26, 2014Observed: 4097.61 ft at 9:15AM Jul 26, 2014Observed: 4097.61 ft at 9:30AM Jul 26, 2014Observed: 4097.62 ft at 9:45AM Jul 26, 2014Observed: 4097.61 ft at 10:00AM Jul 26, 2014Observed: 4097.6 ft at 10:15AM Jul 26, 2014Observed: 4097.61 ft at 10:30AM Jul 26, 2014Observed: 4097.61 ft at 10:45AM Jul 26, 2014Observed: 4097.61 ft at 11:00AM Jul 26, 2014Observed: 4097.6 ft at 11:15AM Jul 26, 2014Observed: 4097.61 ft at 11:30AM Jul 26, 2014Observed: 4097.61 ft at 11:45AM Jul 26, 2014Observed: 4097.61 ft at 12:00PM Jul 26, 2014Observed: 4097.61 ft at 12:15PM Jul 26, 2014Observed: 4097.6 ft at 12:30PM Jul 26, 2014Observed: 4097.6 ft at 12:45PM Jul 26, 2014Observed: 4097.61 ft at 1:00PM Jul 26, 2014Observed: 4097.61 ft at 1:15PM Jul 26, 2014Observed: 4097.6 ft at 1:30PM Jul 26, 2014Observed: 4097.61 ft at 1:45PM Jul 26, 2014Observed: 4097.6 ft at 2:00PM Jul 26, 2014Observed: 4097.61 ft at 2:15PM Jul 26, 2014Observed: 4097.6 ft at 2:30PM Jul 26, 2014Observed: 4097.6 ft at 2:45PM Jul 26, 2014Observed: 4097.59 ft at 3:00PM Jul 26, 2014Observed: 4097.6 ft at 3:15PM Jul 26, 2014Observed: 4097.6 ft at 3:30PM Jul 26, 2014Observed: 4097.61 ft at 3:45PM Jul 26, 2014Observed: 4097.6 ft at 4:00PM Jul 26, 2014Observed: 4097.6 ft at 4:15PM Jul 26, 2014Observed: 4097.6 ft at 4:30PM Jul 26, 2014Observed: 4097.6 ft at 4:45PM Jul 26, 2014Observed: 4097.59 ft at 5:00PM Jul 26, 2014Observed: 4097.59 ft at 5:15PM Jul 26, 2014Observed: 4097.59 ft at 5:30PM Jul 26, 2014Observed: 4097.59 ft at 5:45PM Jul 26, 2014Observed: 4097.59 ft at 6:00PM Jul 26, 2014Observed: 4097.58 ft at 6:15PM Jul 26, 2014Observed: 4097.59 ft at 6:30PM Jul 26, 2014Observed: 4097.6 ft at 6:45PM Jul 26, 2014Observed: 4097.58 ft at 7:00PM Jul 26, 2014Observed: 4097.58 ft at 7:15PM Jul 26, 2014Observed: 4097.58 ft at 7:30PM Jul 26, 2014Observed: 4097.59 ft at 7:45PM Jul 26, 2014Observed: 4097.59 ft at 8:00PM Jul 26, 2014Observed: 4097.59 ft at 8:15PM Jul 26, 2014Observed: 4097.58 ft at 8:30PM Jul 26, 2014Observed: 4097.58 ft at 8:45PM Jul 26, 2014Observed: 4097.59 ft at 9:00PM Jul 26, 2014Observed: 4097.59 ft at 9:15PM Jul 26, 2014Observed: 4097.59 ft at 9:30PM Jul 26, 2014Observed: 4097.58 ft at 9:45PM Jul 26, 2014Observed: 4097.59 ft at 10:00PM Jul 26, 2014Observed: 4097.59 ft at 10:15PM Jul 26, 2014Observed: 4097.59 ft at 10:30PM Jul 26, 2014Observed: 4097.59 ft at 10:45PM Jul 26, 2014Observed: 4097.59 ft at 11:00PM Jul 26, 2014Observed: 4097.59 ft at 11:15PM Jul 26, 2014Observed: 4097.59 ft at 11:30PM Jul 26, 2014Observed: 4097.59 ft at 11:45PM Jul 26, 2014Observed: 4097.59 ft at 12:00AM Jul 27, 2014Observed: 4097.59 ft at 12:15AM Jul 27, 2014Observed: 4097.58 ft at 12:30AM Jul 27, 2014Observed: 4097.59 ft at 12:45AM Jul 27, 2014Observed: 4097.59 ft at 1:00AM Jul 27, 2014Observed: 4097.59 ft at 1:15AM Jul 27, 2014Observed: 4097.59 ft at 1:30AM Jul 27, 2014Observed: 4097.59 ft at 1:45AM Jul 27, 2014Observed: 4097.59 ft at 2:00AM Jul 27, 2014Observed: 4097.59 ft at 2:15AM Jul 27, 2014Observed: 4097.6 ft at 2:30AM Jul 27, 2014Observed: 4097.59 ft at 2:45AM Jul 27, 2014Observed: 4097.58 ft at 3:00AM Jul 27, 2014Observed: 4097.58 ft at 3:15AM Jul 27, 2014Observed: 4097.59 ft at 3:30AM Jul 27, 2014Observed: 4097.59 ft at 3:45AM Jul 27, 2014Observed: 4097.58 ft at 4:00AM Jul 27, 2014Observed: 4097.58 ft at 4:15AM Jul 27, 2014Observed: 4097.58 ft at 4:30AM Jul 27, 2014Observed: 4097.59 ft at 4:45AM Jul 27, 2014Observed: 4097.59 ft at 5:00AM Jul 27, 2014Observed: 4097.59 ft at 5:15AM Jul 27, 2014Observed: 4097.58 ft at 5:30AM Jul 27, 2014Observed: 4097.58 ft at 5:45AM Jul 27, 2014Observed: 4097.59 ft at 6:00AM Jul 27, 2014Observed: 4097.59 ft at 6:15AM Jul 27, 2014Observed: 4097.59 ft at 6:30AM Jul 27, 2014Observed: 4097.58 ft at 6:45AM Jul 27, 2014Observed: 4097.58 ft at 7:00AM Jul 27, 2014Observed: 4097.59 ft at 7:15AM Jul 27, 2014Observed: 4097.58 ft at 7:30AM Jul 27, 2014Observed: 4097.58 ft at 7:45AM Jul 27, 2014Observed: 4097.57 ft at 8:00AM Jul 27, 2014Observed: 4097.58 ft at 8:15AM Jul 27, 2014Observed: 4097.59 ft at 8:30AM Jul 27, 2014Observed: 4097.59 ft at 8:45AM Jul 27, 2014Observed: 4097.59 ft at 9:00AM Jul 27, 2014Observed: 4097.58 ft at 9:15AM Jul 27, 2014Observed: 4097.59 ft at 9:30AM Jul 27, 2014Observed: 4097.58 ft at 9:45AM Jul 27, 2014Observed: 4097.59 ft at 10:00AM Jul 27, 2014Observed: 4097.59 ft at 10:15AM Jul 27, 2014Observed: 4097.58 ft at 10:30AM Jul 27, 2014Observed: 4097.58 ft at 10:45AM Jul 27, 2014Observed: 4097.58 ft at 11:00AM Jul 27, 2014Observed: 4097.58 ft at 11:15AM Jul 27, 2014Observed: 4097.58 ft at 11:30AM Jul 27, 2014Observed: 4097.58 ft at 11:45AM Jul 27, 2014Observed: 4097.58 ft at 12:00PM Jul 27, 2014Observed: 4097.58 ft at 12:15PM Jul 27, 2014Observed: 4097.58 ft at 12:30PM Jul 27, 2014Observed: 4097.58 ft at 12:45PM Jul 27, 2014Observed: 4097.58 ft at 1:00PM Jul 27, 2014Observed: 4097.58 ft at 1:15PM Jul 27, 2014Observed: 4097.58 ft at 1:30PM Jul 27, 2014Observed: 4097.58 ft at 1:45PM Jul 27, 2014Observed: 4097.58 ft at 2:00PM Jul 27, 2014Observed: 4097.57 ft at 2:15PM Jul 27, 2014Observed: 4097.58 ft at 2:30PM Jul 27, 2014Observed: 4097.57 ft at 2:45PM Jul 27, 2014Observed: 4097.58 ft at 3:00PM Jul 27, 2014Observed: 4097.57 ft at 3:15PM Jul 27, 2014Observed: 4097.58 ft at 3:30PM Jul 27, 2014Observed: 4097.57 ft at 3:45PM Jul 27, 2014Observed: 4097.57 ft at 4:00PM Jul 27, 2014Observed: 4097.57 ft at 4:15PM Jul 27, 2014Observed: 4097.57 ft at 4:30PM Jul 27, 2014Observed: 4097.57 ft at 4:45PM Jul 27, 2014Observed: 4097.57 ft at 5:00PM Jul 27, 2014Observed: 4097.57 ft at 5:15PM Jul 27, 2014Observed: 4097.56 ft at 5:30PM Jul 27, 2014Observed: 4097.57 ft at 5:45PM Jul 27, 2014Observed: 4097.57 ft at 6:00PM Jul 27, 2014Observed: 4097.57 ft at 6:15PM Jul 27, 2014Observed: 4097.57 ft at 6:30PM Jul 27, 2014Observed: 4097.56 ft at 6:45PM Jul 27, 2014Observed: 4097.57 ft at 7:00PM Jul 27, 2014Observed: 4097.56 ft at 7:15PM Jul 27, 2014Observed: 4097.57 ft at 7:30PM Jul 27, 2014Observed: 4097.57 ft at 7:45PM Jul 27, 2014Observed: 4097.57 ft at 8:00PM Jul 27, 2014Observed: 4097.56 ft at 8:15PM Jul 27, 2014Observed: 4097.57 ft at 8:30PM Jul 27, 2014Observed: 4097.57 ft at 8:45PM Jul 27, 2014Observed: 4097.57 ft at 9:00PM Jul 27, 2014Observed: 4097.49 ft at 9:15PM Jul 27, 2014Observed: 4097.57 ft at 9:30PM Jul 27, 2014Observed: 4097.57 ft at 9:45PM Jul 27, 2014Observed: 4097.57 ft at 10:00PM Jul 27, 2014Observed: 4097.57 ft at 10:15PM Jul 27, 2014Observed: 4097.56 ft at 10:30PM Jul 27, 2014Observed: 4097.58 ft at 10:45PM Jul 27, 2014Observed: 4097.58 ft at 11:00PM Jul 27, 2014Observed: 4097.57 ft at 11:15PM Jul 27, 2014Observed: 4097.57 ft at 11:30PM Jul 27, 2014Observed: 4097.56 ft at 11:45PM Jul 27, 2014Observed: 4097.57 ft at 12:00AM Jul 28, 2014Observed: 4097.57 ft at 12:15AM Jul 28, 2014Observed: 4097.57 ft at 12:30AM Jul 28, 2014Observed: 4097.57 ft at 12:45AM Jul 28, 2014Observed: 4097.56 ft at 1:00AM Jul 28, 2014Observed: 4097.56 ft at 1:15AM Jul 28, 2014Observed: 4097.57 ft at 1:30AM Jul 28, 2014Observed: 4097.56 ft at 1:45AM Jul 28, 2014Observed: 4097.56 ft at 2:00AM Jul 28, 2014Observed: 4097.56 ft at 2:15AM Jul 28, 2014Observed: 4097.57 ft at 2:30AM Jul 28, 2014Observed: 4097.56 ft at 2:45AM Jul 28, 2014Observed: 4097.57 ft at 3:00AM Jul 28, 2014Observed: 4097.56 ft at 3:15AM Jul 28, 2014Observed: 4097.57 ft at 3:30AM Jul 28, 2014Observed: 4097.56 ft at 3:45AM Jul 28, 2014Observed: 4097.57 ft at 4:00AM Jul 28, 2014Observed: 4097.56 ft at 4:15AM Jul 28, 2014Observed: 4097.56 ft at 4:30AM Jul 28, 2014Observed: 4097.56 ft at 4:45AM Jul 28, 2014Observed: 4097.56 ft at 5:00AM Jul 28, 2014Observed: 4097.56 ft at 5:15AM Jul 28, 2014Observed: 4097.56 ft at 5:30AM Jul 28, 2014Observed: 4097.56 ft at 5:45AM Jul 28, 2014Observed: 4097.56 ft at 6:00AM Jul 28, 2014Observed: 4097.56 ft at 6:15AM Jul 28, 2014Observed: 4097.56 ft at 6:30AM Jul 28, 2014Observed: 4097.57 ft at 6:45AM Jul 28, 2014Observed: 4097.57 ft at 7:00AM Jul 28, 2014Observed: 4097.56 ft at 7:15AM Jul 28, 2014Bureau of ReclamationKEYW4(plotting HPIRG) Graph Created (8:20AM Jul 28, 2014)ObservedLatest observed value: 4097.56 ft at 7:15 AM MDT 28-Jul-2014.
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Belle Fourche River at Keyhole Reservoir. Only observed stages are available for this point.
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Upstream Gauge - below Moorcroft Upstream Gauge Downstream Gauge Downstream Gauge - near Alva
Flood Categories (in feet)
Major Flood Stage:0
Moderate Flood Stage:0
Flood Stage:0
Action Stage:4099.3

Historical Crests
(1) 4,100.38 ft on 05/21/1978
(2) 4,099.45 ft on 03/17/2012
(3) 4,099.06 ft on 06/14/1999
(4) 4,098.78 ft on 03/07/1972
(5) 4,098.55 ft on 04/23/1997
Show More Historical Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4,046.35 ft on 03/09/1955
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:14
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
4134 Dam crest elevation.
4128.7 Normal water surface elevation.
4111.5 Top of flood control.
4099.3 Spillway crest elevation. Top of active conservation capacity.
4051 Top of inactive conservation pool.
4036 Top of dead storage pool.
Photos
(1) Keyhole Dam
(2) Keyhole Reservoir
(3) Spillway
About This Location Collapse

Latitude: 44.381944° N, Longitude: 104.779167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 4016 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Rapid City Weather Forecast Office
300 East Signal Drive
Rapid City, SD 57701-3800
(605) 341-7531
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Page last modified: 16-Jul-2014 12:46 AM
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