Mancos River

Streamflow, conditions and background by watershed segment. Data through November 1, 2026.

Moderate flood on the Mancos River

Readings through Nov 4, 10:45 PM Mountain time

A Weather Service gauge on this river reached flood stage in the last 3 days. The map marks it with a diamond; one that pulses was in flood at its last reading, and a dashed ring means the gauge has stopped reporting.

  • Mancos River near Mancos, CO

    Moderate flood

    Peak 8.8 ft on Nov 2, 12:30 AM. Last reading Nov 4, 2:00 PM: 7.1 ft. The gauge has sent nothing since. Weather Service gauge page

Not a warning. This page is rebuilt at least once a day, and again when a river's flood status changes, so it can be hours out of date. For what is happening now, see the Weather Service's current river levels and its flood safety advice.

Where it is

Segments are the HUC8 watersheds the gauges sit in, numbered upstream to downstream. Use the buttons to switch between the state and the river.

Map of the Mancos River in New MexicoNew Mexico, with the Mancos River's 1 watershed segment shaded and numbered upstream to downstream, the river and its gauges. One gauge on the river reached flood stage in the last few days and is marked with a diamond: Mancos River near Mancos: moderate flood, peak 8.8 ft on Nov 2, still in flood at the last reading, and no reading since Nov 4, 2:00 PM.Beaver CreekCanadian RiverChaco RiverEast Fork Gila RiverGila RiverMimbres RiverPecos RiverRio ChamaRio GrandeRio HondoRio PuercoRio SaladoRio San JoseSalt CreekSan Francisco RiverSan Juan River1. Mancos (HUC 14080107)Mancos RiverAlbuquerqueSanta FeLas CrucesRoswellFarmingtonMancos RiverMancos River near Mancos: moderate flood, peak 8.8 ft on Nov 2, still in flood at the last reading, and no reading since Nov 4, 2:00 PMChaco RiverSan Juan River1. Mancos (HUC 14080107)Navajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashNavajo WashChicken CreekChicken CreekChicken CreekChicken CreekChicken CreekChicken CreekChicken CreekMancos RiverMANCOS RIVER NEAR MANCOS, CO. (Mancos)MANCOS RIVER NEAR MANCOS (Mancos)MANCOS RIVER AT CJ's BRIDGE NEAR MANCOS (Mancos)MANCOS RIVER NEAR CORTEZ, CO. (Mancos)MANCOS RIVER BELOW JOHNSON CANYON NR CORTEZ, CO. (Mancos)MANCOS RIVER AT ANITAS FLAT BELOW MANCOS, CO (Mancos)MANCOS RIVER NEAR TOWAOC, CO. (Mancos)MANCOS RIVER NR FOUR CORNERS, CO (Mancos)1Mancos River near Mancos: moderate flood, peak 8.8 ft on Nov 2, still in flood at the last reading, and no reading since Nov 4, 2:00 PM
  • 1Mancos
  • river and reservoirs
  • gauge
  • moderate flood
  • pulsing: in flood at its last reading
  • dashed: gauge has stopped reporting

About the Mancos River

This report follows 76 miles (123 km) of the Mancos River, all within the Mancos watershed segment. At the lower end of the report the river drains about 793 square miles. Named tributaries joining it here include the Navajo Wash and Chicken Creek. 8 gauges with at least 26 weeks of daily flow cover 1921 to 2026.

From the archive: NHDPlus river network, WBD watersheds, NHD waterbodies, TIGER urban areas and the report's gauges.

From the headwaters down

Each watershed segment in order, with last week's flow rated against the same week in 1991–2020.

  1. Mancos

    196 cfs last week much above normal, 142 dry days this year.

    Median conductance 1,352 µS/cm in the 2020s. Rain over the last 3 months: 229% of normal.

Reservoirs

No reservoir with 500 acre-feet or more of storage on this river in the National Inventory of Dams.

Water users

Surface water withdrawn, 2020

In the counties this river crosses (San Juan): 412,312 acre-feet. County totals include other streams.

UseShareAcre-ft
Irrigated agriculture80%330,370
Power8%32,474
Reservoir evaporation7%27,174
Public water supply5%21,357
Commercial0%913

State Engineer, New Mexico Water Use by Categories 2020.

Sources

Numbered sources for the statements above, as they were read when the page was prepared.