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Reno Gulch near Hill City

Highest listed crest 6.32 ftFlood stage 6.0 ft26 crests since 1998

The Reno Gulch near Hill City crested above flood stage 1 time among the 26 crests the National Weather Service lists from 1998 to 2024. The highest, 6.32 ft on May 26, 2015, was minor flooding, 0.32 feet above flood stage.

The gauge

Highest listed crest
6.32 ft
May 26, 2015; 34 cubic feet per second
Flood stage
6.0 ft
Major flooding from 8.0 ft
Crests at major
0
1 above flood stage
Most recent flood crest
May 26, 2015
6.32 ft, minor flooding
Location
Pennington County
South Dakota
Identifiers
NWS RGUS2
USGS 06406760; out of service

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Reno Gulch near Hill City
Action stage4.82May 28, 2019The level at which the NWS or its partners begin to take action
Flood stage (minor)6.01May 26, 2015Minimal or no property damage, but possibly some public threat
Moderate flood stage7.00—Some inundation of structures and roads near the stream
Major flood stage8.00—Extensive inundation of structures and roads

Every listed crest

26 crests from 1998 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Reno Gulch near Hill City, 1998 to 2024 345678ft Flood stage 6.0 ftMajor 8.0 ft Jun 18, 1998: 5.84 ft, action stage; 99 cubic feet per secondJul 13, 1999: 4.54 ft, below flood stage; 17 cubic feet per secondApr 24, 2000: 4.35 ft, below flood stage; 11 cubic feet per secondApr 24, 2001: 4.00 ft, below flood stage; 4 cubic feet per secondJul 19, 2002: 3.85 ft, below flood stage; 2 cubic feet per secondMay 2, 2003: 4.25 ft, below flood stage; 9 cubic feet per secondMar 25, 2004: 3.53 ft, below flood stage; 2 cubic feet per secondMay 31, 2005: 3.47 ft, below flood stageMay 25, 2006: 3.42 ft, below flood stageApr 19, 2007: 3.41 ft, below flood stageJan 1, 2008: 3.95 ft, below flood stage; 3 cubic feet per secondJun 10, 2009: 3.78 ft, below flood stage; 1 cubic feet per secondMay 24, 2010: 4.53 ft, below flood stage; 12 cubic feet per secondJul 6, 2011: 4.72 ft, below flood stage; 15 cubic feet per secondApr 13, 2012: 3.59 ft, below flood stageMay 1, 2013: 3.73 ft, below flood stageSep 30, 2014: 4.43 ft, below flood stage; 5 cubic feet per secondMay 26, 2015: 6.32 ft, minor flooding; 34 cubic feet per secondApr 3, 2017: 3.70 ft, below flood stageJul 21, 2018: 4.49 ft, below flood stage; 10 cubic feet per secondMay 28, 2019: 5.34 ft, action stage; 13 cubic feet per secondMay 2, 2020: 4.09 ft, below flood stage; 3 cubic feet per secondMay 23, 2021: 3.88 ft, below flood stageJun 4, 2022: 4.39 ft, below flood stage; 6 cubic feet per secondJun 29, 2023: 4.02 ft, below flood stage; 2 cubic feet per secondApr 6, 2024: 3.85 ft, below flood stage; 1 cubic feet per second Highest, 6.32 ft, May 26, 2015 200020052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Reno Gulch near Hill City 1990s: 0 2000s: 0 2010s: 1 1 2020s: 0 1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Reno Gulch near Hill City
1May 26, 20156.32+0.32Minor34
2Jun 18, 19985.84−0.16Action99
3May 28, 20195.34−0.66Action13
4Jul 6, 20114.72−1.28Below flood stage15
5Jul 13, 19994.54−1.46Below flood stage17
6May 24, 20104.53−1.47Below flood stage12
7Jul 21, 20184.49−1.51Below flood stage10
8Sep 30, 20144.43−1.57Below flood stage5
9Jun 4, 20224.39−1.61Below flood stage6
10Apr 24, 20004.35−1.65Below flood stage11
11May 2, 20034.25−1.75Below flood stage9
12May 2, 20204.09−1.91Below flood stage3
13Jun 29, 20234.02−1.98Below flood stage2
14Apr 24, 20014.00−2.00Below flood stage4
15Jan 1, 20083.95−2.05Below flood stage3
16May 23, 20213.88−2.12Below flood stage—
17Jul 19, 20023.85−2.15Below flood stage2
18Apr 6, 20243.85−2.15Below flood stage1
19Jun 10, 20093.78−2.22Below flood stage1
20May 1, 20133.73−2.27Below flood stage—
21Apr 3, 20173.70−2.30Below flood stage—
22Apr 13, 20123.59−2.41Below flood stage—
23Mar 25, 20043.53−2.47Below flood stage2
24May 31, 20053.47−2.53Below flood stage—
25May 25, 20063.42−2.58Below flood stage—
26Apr 19, 20073.41−2.59Below flood stage—

Other gauges in Pennington County

Flood gauges in Pennington County
Keystone6.514.50 ft, Jun 9, 19721
Keystone8.014.50 ft, Jun 9, 19721
Rapid City33.534.24 ft, Jul 5, 20190
Deerfield6.06.54 ft, Mar 15, 20190
Scenic18.019.31 ft, Mar 11, 20110
Wasta13.018.00 ft, May 15, 19202
Keystone4.56.32 ft, Oct 11, 20131
Johnson Siding4.54.88 ft, Jun 24, 20150
Victoria Creek near Rapid City7.513.00 ft, Jun 9, 19721
Water Reclamation Facility near Rapid City9.011.23 ft, May 28, 20190
Big Bend7.07.43 ft, Jun 24, 20150
Founders Park11.011.18 ft, Jun 2, 19970
Hawthorne Ditch at Rapid City16.024.30 ft, Jun 9, 19720
Farmingdale11.012.69 ft, May 24, 20103
Rockerville7.014.00 ft, Jun 10, 19721
Hill City6.58.23 ft, Jun 18, 19981
Victoria Dam nr Rapid City6.58.20 ft, May 28, 20191

Pennington County: every hazard · River floods across the country · South Dakota

NOAA National Water Prediction Service, gauge RGUS2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.