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Sierra Mac River Trips

Middle Tuolumne River near Groveland, CA

River16.6 mi
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Around here

Around Middle Tuolumne River

Dimond O · 4.4 miHodgdon Meadow Campground6.1 mi5 mi

Data Source: Recreation.gov · Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)

About this river

Middle Tuolumne River is a 16.6 mile river near Sierra Mac River Trips in California. Streamflow is measured at the USGS gauge Tuolumne R above Early Intake near Mather CA (site 11276600). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1971 to 2026

Middle Tuolumne River typically runs highest in June, at a median 839 cfs, and lowest in October, at 54 cfs. The highest flow on record for any single day is 14,500 cfs, in 1997.

Show the numbers
Typical flow by month at Tuolumne R above Early Intake near Mather CA, in cfs
MonthTypical (cfs)Usual range (cfs)
January7451 to 124
February9870 to 182
March12473 to 213
April16881 to 291
May260101 to 2,610
June839116 to 3,090
July13493 to 376
August13191 to 147
September8975 to 103
October5440 to 65
November5942 to 70
December6046 to 73

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 55 years of record. Statistics published by the US Geological Survey for Tuolumne R above Early Intake near Mather CA (site 11276600). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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