Rock Creek Marina

Rock Creek Marina is a marina in Fort Peck, Montana. The marina is located on Fort Peck Lake. Boat slips are available for rent.

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Vessels: Powerboat

Boat launches near Rock Creek Marina

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Typical flow by month

1976 to 2025

The water at Rock Creek Marina typically runs highest in March, at a median 0.6 cfs, and lowest in January, at 0.0 cfs. The highest flow on record for any single day is 929 cfs, in 2019.

Typical flow by month at Nelson Creek near Van Norman MT, in cfs
Month	Typical (cfs)	Usual range (cfs)
January	0.0	0.0 to 0.0
February	0.0	0.0 to 0.5
March	0.6	0.1 to 2.7
April	0.2	0.1 to 0.7
May	0.1	0.0 to 0.6
June	0.1	0.0 to 0.8
July	0.0	0.0 to 0.1
August	0.0	0.0 to 0.0
September	0.0	0.0 to 0.0
October	0.0	0.0 to 0.0
November	0.0	0.0 to 0.1
December	0.0	0.0 to 0.0

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 33 years of record. Statistics published by the US Geological Survey for Nelson Creek near Van Norman MT (site 06131200). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.