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Hydrograph River at a Glance Download
Bear Butte Creek at Boulder Canyon Stage (ft)USGS--Water Resources of the United StatesBOUS2(plotting HGIRG) Graph Created (12:38AM Oct 26, 2020)ObservedLatest observed value: 3.18 ft at 8:15 AM MDT 20-Oct-2020. Flood Stage is 6.5 ft
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Tabular Data (UTC)
Tabular Data (MDT)
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Datum: NGVD29
NOTE: Forecasts are not available for the Bear Butte Creek at Boulder Canyon. Only observed stages are available for this point.
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Upstream Gauge - near Galena Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 10
Moderate Flood Stage: 8
Flood Stage: 6.5
Action Stage: 5.5
Low Stage (in feet): -9999

Historic Crests
(1) 7.86 ft on 07/04/2019
(2) 6.08 ft on 06/06/2008
(3) 5.77 ft on 06/02/2007
(4) 5.72 ft on 06/18/1998
(5) 5.18 ft on 05/21/2013
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(P): Preliminary values subject to further review.

Recent Crests
(1) 7.86 ft on 07/04/2019
(2) 3.67 ft on 06/22/2018
(3) 2.77 ft on 08/26/2017
(4) 2.93 ft on 10/23/2015
(5) 5.04 ft on 05/29/2015
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:14
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Gauge LocationGauge Map Marker
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.
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If you notice any errors in the below information, please contact our Webmaster
10 Major flood stage. Extensive flooding along Bear Butte Creek with inundation of structures and roads in Boulder Canyon and Sturgis.
8 Moderate flood stage. Some inundation of structures and roads along Bear Butte Creek in Boulder Canyon and Sturgis.
6.5 Flood stage. Flooding affects secondary roads near sturgis. The low water crossing a quarter mile upstream from the gage floods and access to homes is cutoff.
5.7 Access roads off of Boulder Canyon Road can become impassable.
5.5 Action stage. Flooding of low lying areas along the creek.
4 Water begins to flow in the creek through Sturgis.
(1) Looking across Bear Butte Creek from the USGS rivergage
(2) Upstream side of the Highway 14A Bridge
(3) Looking Downstream from the USGS rivergage
(4) Looking Upstream from Highway 14A Bridge
(5) Gage site
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Latitude: 44.396667° N, Longitude: 103.582222° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 3770 ft 3776.5 ft 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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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: 1-Mar-2019 12:33 AM
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