From the Native American tribes who gathered resources in the area for millennia to the bustling park that exists on the land today, a wide variety of groups have found meaning and importance in the mountain now called Mount Rainier.

Mount Rainier is a stratovolcano in the Cascade Volcanic Arc that consists of lava flows, debris flows, and pyroclastic ejecta and flows. Its early volcanic deposits are estimated at more than 840,000 years old and are part of the Lily Formation (about 2.9 million to 840,000 years ago).

2024年12月10日 · Mount Rainier, highest mountain (14,410 feet [4,392 meters]) in the state of Washington, U.S., and in the Cascade Range. It lies about 40 miles (64 km) southeast of the city of Tacoma, within Mount Rainier National Park. An active volcano, it …

2023年12月18日 · Discover the storied human history of the mountain! Archaeologists at Mount Rainier study human use on the mountain spanning at least 9,000 years! Articles and publications about Mount Rainier history. The National Historic Landmark District encompasses all of the park roads, historic developed areas, and historic backcountry structures.

2023年11月8日 · Mount Rainier is not the first volcano to have grown in its present location. The edifice of modern Mount Rainier assembled over the last half million years by the accumulation of hundreds individual lava flows, but an ancestral Mount Rainier stood in the same place from 1 to 2 million years ago.

2023年11月7日 · Around 500,000 years ago, Mount Rainier started to grow atop the eroded remains of an earlier ancestral Mount Rainier that was active 1-2 million years ago. The modern edifice grew as a series of four alternating stages of volcanic activity, averaging a little more than 100,000 years duration.

2020年10月13日 · Today's Mount Rainier began to form 500,000 years ago and grew to an estimated 16,000 feet. About 5,600 years ago, a massive volcanic mudflow, or lahar, known as the Osceola Mudflow sent an estimated 3.8 cubic miles of …

2024年7月15日 · In 1935, as the movement to protect wild spaces was gaining nationwide momentum, local mountaineers suggested for the first time that a Mount Rainier “wilderness” be established in the northern roadless sections of the park because they were concerned about resource damage in the area.

At 14,410 feet, the mountain is the tallest volcano in the Cascade Mountain Range and the most glaciated peak in the continental United States. Basalt columns and other remnants of early eruptions and lava flows reveal Mount Rainier's ancient geologic history. Glaciers, massive rivers of ice up to 750 feet deep, flow down the rocky slopes.

Mount Rainier has come a long way from the landscape inhabited 4,000 years ago by tribal peoples. Designated as wilderness and a National Historic Landmark District, with 2023 visitation numbers of over 2.5 million, the park seeks ways to mitigate congestion and …