Rocky Mountain National Park

Expidition

1820

Stephen A. Long Expedition travels the plains and are the first non-Indians to see Longs Peak.

Created

1915

the rocky mountain national park was created in January 26, 1915

Dedicated

1915

Rocky Mountain National Park dedicated in Horseshoe Park

Road built

1929

Trail Ridge Road constructed

Tunnel under the park

1947

Colorado-Big Thompson Project and Alva B Adams tunnel completed under Park

Continental Divide trail

1978

Establishment and designation of the Continental Divide National Scenic Trail

FLOOD!

1982

Lawn Lake dam collapses - flood kills 3 people and severely impacts Estes Park

Ski area

1992

Hidden Valley becomes a ski area; closed in 1992 and removed by 2002

Grand Ditch

2003

Grand Ditch breach occurs

HIdden Valley reopens

2004

Hidden Valley reopens for winter sledding and summer picnics