Colorado-NW

The Kannah Creek Aqueduct (5ME.16137) is a nearly twenty-mile-long underground water transportation pipeline conveying water from Grand Junction's intake facility to reservoirs and then to the City's water treatment facility in Orchard Mesa. The 1911 pipeline was updated in 2023 with funding from the Bureau of Reclamation's WaterSMART Program.

The historic Maybell Canal provides irrigation water drawn from the Yampa River to farm lands surrounding Maybell, Colorado. Construction and the initial appropriation of water for the canal began in 1899. The upper portion of the canal extends through Juniper Canyon, elevated above the Yampa River by a stone retaining wall, prior to crossing the river via flume and flowing towards Maybell.

The Grand Tunnel Ditch (5GF.2913) was originally built in 1882 to irrigate approximately 17 acres outside Rifle Colorado. The ditch has been expanded and enlarged several times over the years and today the ditch irrigates between 500 and 700 acres of land annually. In addition to agricultural users, the ditch also provides water for residential and municipal irrigation. The resource was determined to be eligible for inclusion in the National Register of Historic Places for its contribution to the historic settlement and agricultural development of the area around Rifle, Colorado.