As part of a Northern Water-led maintenance project, about 80% of the normal surface area will be drained from Boulder Reservoir, popular with boaters and watercraft users.

An event production company has opened registration for a fall marathon and a summer half marathon at the Boulder Reservoir to replace the twice-cancelled Boulder Marathon, but the permits for the ...

Anyone wanting to enjoy the Boulder Reservoir this weekend will have to wait until Sunday. The reservoir is closed through Saturday for the Boulder Ironman 70.3 event, the city’s parks and ...

Hundreds of participants gather at the Boulder Reservoir on Jan. 1, 2015, to brave the frigid waters in the 2015 Boulder Polar Plunge, all to benefit the Boulder County AIDS Project. In the 32nd ...

BOULDER, Colo. — Starting Sept. 1 and lasting until March 2021, crews will drain Boulder Reservoir and limit access to perform required maintenance work that usually happens every five to 10 years.

Sep. 13—A portion of North 51st Street by Boulder Reservoir will be closed through December, starting Monday. According to a Public Works Department news release, starting at 7 a.m., the street ...