Old Fall River Road will be closed in 2014 due to flood damage
Damages on Old Fall River Road are extensive and the road will remain closed to vehicles through 2014. It is unknown at this time whether hikers and bicyclists will be allowed on the road. More »
Impacts from September 2013 Flood
Due to recent flooding, there are still some closures in the park that could affect your visit. More »
Their daily routine can be observed as they are up with the sun and busily foraging along well-worn paths. By midmorning they can be found basking in the sun. After noon, they retreat to their burrows appearing again late in the afternoon basking again atop boulders. Then a final round of foraging late in the afternoon occurs before they retire to their burrows for night. Various whistles have been identified which appear to alert others in the colony or to maintain spacing between colonies. Marmots are hibernators entering their burrows in September or early October, emerging in spring in April or May.
Breeding occurs in spring soon after hibernation ends. Gestation is four to five weeks with litters of three to eight young. As yearlings, both males and females disperse from their birth colony. During this time they are especially susceptible to predation.
Did You Know?
Rocky Mountain National Park has a cool site for kids. What do you know about the park? The Web Ranger Challenge tests your knowledge! More...