A large smooth mass of rock detached from its place of origin; SYN. bowlder.

1. City in Colorado (USA).
2. Town in Montana (USA); zip code 59632.
3. Town in Utah (USA); zip code 84716.
City in N central Colorado, US, northwest of Denver, in the eastern foothills of the Rocky Mountains; A center of scientific research, especially space research, it also has agriculture, mining, and tourism.
It is the site of the University of Colorado 1876.