General Information

The Mountain Goat (Oreamnos americanus), also known as the Rocky Mountain Goat, is a large hoofed mammal found only in North America. Although it resembles a goat it is not a true goat, being in a different genus. It resides at high elevations and is a sure-footed climber, often resting on rocky cliffs that predators cannot reach.

Both male and female mountain goats have beards, short tails, and long black horns, 15-28 cm in length, which contain yearly growth rings. They are protected from the elements by their woolly white double coats. The fine, dense wool of their undercoats is covered by an outer layer of longer, hollow hairs. In warmer seasons, mountain goats molt by rubbing against rocks and trees, with the adult billies (males) shedding their extra wool first and the pregnant nannies (females) shedding last. In the winter, their coats help them to withstand temperatures as low as -50 Fahrenheit (-46 Celsius) and winds of up to 100 mph (161 km/h).

The mountain goat's feet are well-suited for climbing steep, rocky slopes, sometimes with pitches of 60 degrees or more, with inner pads that provide traction and cloven hooves that can spread apart as needed. Dewclaws on the back of their feet also help to keep them from slipping.

Daily movements by individual mountain goats are primarily confined to areas on the same mountain face, drainage basin, or alpine opening. Daily movements reflect an individual’s needs for foraging, resting, thermoregulation, and security from predators or disturbance. Seasonal movements primarily reflect nutritional needs (e.g., movements to and from mineral licks/salt lick), reproductive needs (i.e., movement of pre-parturient females to “kidding” areas; movement to rutting areas), and climatic influences (i.e., movement to areas in response to foraging conditions). In general, seasonal movements are likely to exhibit a strong elevational component, whereby lower, forested elevations are used during the spring-summer (security cover effects) to access lower elevation mineral licks, and during winter (thermal cover effects) to access forage. The farthest movements are expected to be by dispersing mountain goats. Such movements are likely to involve mountain goats crossing forested valleys as they move between mountain blocks.

Other Information

Mountain Goat Range Map, statewide scale

Mounatin Goat Scat

Mountain Goat Track