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Blue Mesa Reservoir

Gunnison River · Colorado · Full pool 7,519′ 5″ · USBR · HYDRODATA
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Surface level
Listening for the surface…
vs Yesterday
vs 30 days
vs 60 days

The shape of the year

Drawing the tideline…

Boat ramps

Ramp Closes
at
Margin Projected
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See the shoreline

Watch the lake recede through the season
Explore the interactive map

Season trajectory

Peak below fullsince Jan 1
Lost since peak
Recent ratelast 30 days
Current volume% of active capacity · 829,500 af
Inflow / Outflowcubic ft/s in vs out
Netinflow − outflow · today
Projected lowBOR 24-Month Study · May 15, 2026

Weather at Blue Mesa (Sapinero)

Flow balance

Reading the river…
Inflow Outflow Lake gaining Lake losing

The river, right now

Reading the river…

The inflow and outflow above are Reclamation daily means, and they lag a day or two. These are streamgages on the river itself, reporting every 15 minutes: what the Gunnison is carrying past town, what is coming down the Lake Fork, and what the Aspinall dams are sending on through the Black Canyon.

Daily log

Date Elevation Below
full
Change Inflow
cfs
Outflow
cfs
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Lake history

Reading the record…
Annual peak Annual minimum Full pool (7,519′ 5″)
Year Peak
below full
Min
below full
Range
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