Site Details

descriptions and directions

Cottonwood Marsh photo by Peter Burke

Accessible LUNA Reservoir - Weld County
Ownership: None Listed
Description: LUNA Reservoir, not named on most maps, is so known by the birding community thanks to the playful Bill Kaempfer, who dubbed it the "Large Un-NAmed Reservoir." Despite its anonymity, this body of water has attracted good birds, including at least one and possibly two species of jaeger in the fall of 2004, Red Phalarope, Mew Gull, and Laughing Gull. It is one of the best spots in the state for Greater Scaup. In general, large numbers of ducks, grebes, and gulls (Ring-billed, and seasonally, Franklin's) can be found here except when the water is frozen or during mid-summer. LUNA is best (pretty much solely) viewed from its northwestern corner and is large. So, telescope viewing is a must and afternoons are generally best (except on cloudy days). Keep in mind that the land immediately to the west across the road is in Broomfield County, in case any obliging rarities decide to make forays.

Habitat: Pond/Lake/Reservoir
Directions: Take either exit 232 (onto CR 8) or 229 (onto CO 7, but be sure to turn left onto CR 2 just east of the exit) off of I-25 and travel 1 mile east to CR 11. LUNA Reservoir is on the east side of the road, a little over 2 miles south of CR 8, and a little under a mile from CR 2.
Other Wildlife:
Other Attractions:

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Other Sites in Weld County
eBird Seasonal Bar Chart

Latest LUNA Reservoir Sightings from eBird


CBRC Records from LUNA Reservoir

SpeciesAccession No.Date(s)
Parasitic Jaeger2004-059 10/31/2004
Laughing Gull2013-188 08/03/2013