In the south end of Glacier National Park, just east of Essex, lies a mineral deposit that the mountain goats find particularly delicious in the spring. While driving along Highway 2 near Essex, MT, look for the sign for the Goat Lick and pull into the parking lot. The best time to see the goats is in the spring and you may even be rewarded by elk or other wildlife (but more likely if you come at dusk). It is a short wheelchair accessible paved walk to an overlook, but you can see them from the road as they walk underneath or right at the trailhead.
Mountain goats at the Goat Lick
Mountain goats at the Goat Lick