Blue Mesa Reservoir

As of October 7, 2026, Blue Mesa Reservoir is filled to 19.1% of its total capacity, holding roughly 176 hm³ of water out of a maximum 923 hm³. At this level the reservoir is critically low.

Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 35.0 points below its level on the same date a year earlier.

Across the readings we hold for Blue Mesa Reservoir — 1824 data points between October 10, 2021 and October 7, 2026 — the level has ranged from a low of 19.1% (September 27, 2026) to a high of 102.2% (June 25, 2023). On average the reservoir is fullest around July and at its lowest around April.

It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 38.464°N, 107.225°W.