As the National Park Service turns 100 years old on Aug. 25, 2016, we're pausing to take a look back at some of the system's magnificent scenes captured by Alaska Dispatch News photographers since the new millennium.

The Park Service manages a network of historic sites, preserves and monuments in Alaska, but this collection is gleaned from visits to six of the eight spots in Alaska, among 59 nationwide, that hold the distinction of being a national park.

Alaska's national parks and preserves include such recognizable names as Denali, Gates of the Arctic, Glacier Bay, Katmai, Kenai Fjords, Kobuk Valley, Lake Clark and Wrangell-St. Elias. Among those are the four largest national parks — Wrangell-St. Elias at 13,000 square miles, Gates of the Arctic at 11,700, Denali at 7,400, Katmai at 5,700 — all bigger than Death Valley National Park, the biggest in the Lower 48.

The Alaska National Interest Lands Conservation Act, signed by President Jimmy Carter in 1980, added 100 million acres in Alaska to the system. That meant that two-thirds of the acreage in the National Park Service system was in Alaska.

Enjoy this look around the landscapes, wildlife and visitors of Alaska's share in the National Park Service.

Snow swirls around a bull moose in Denali National Park on Sept. 23, 2014. The bull was with two cows in the park.  (Bob Hallinen / Alaska Dispatch News)
Guided visitors explore Root Glacier in June of 2015 near Kennecott. The glacier joins the Kennicott Glacier near the Kennecott Mine site in Wrangell St. Elias National Park and Preserve. (Erik Hill / Alaska Dispatch News)
A sow and her three cubs walk up a large driftwood log away from the approaching tide in Hallo Bay in Katmai National Park and Preserve during June of 2013. (Anne Raup / Alaska Dispatch News)
Towers of rock jut out of Resurrection Bay in Kenai Fjords National Park. (Loren Holmes / Alaska Dispatch News)
Wind from a landing CH-47 Chinook helicopter kicks up snow as soldiers with B Company,1st Battalion, 52nd Aviation Regiment from Fort Wainwright assist the National Park Service by airlifting supplies from Talkeetna to the base camp being established for the upcoming climbing season at the 7,200-foot level of Denali, the tallest mountain in North American. They landed on the southeast fork of the Kahiltna Glacier last April. (Bill Roth / Alaska Dispatch News)
Malaspina Glacier stretches out in Wrangell-St. Elias National Park. Malaspina is the largest piedmont glacier in the world — 40 miles wide by 28 miles long. (Bob Hallinen / Alaska Dispatch News)
A bull caribou with freshly shed velvet hanging from its antlers walks near the shore of Wonder Lake in Denali National Park. (Bob Hallinen / Alaska Dispatch News)
Sea lions rest on a rock in Glacier Bay National Park, Aug. 24, 2011. (Loren Holmes / Alaska Dispatch News)
Kenai Fjords National Park visitors get a look at Exit Glacier in 2014. (Marc Lester / Alaska Dispatch News)
A pair of young Dall sheep rams rear up near Polychrome Pass in Denali National Park. The sheep use the head butts to establish social order. Male Dall sheep travel in groups separate from the females and young until the breeding season. (Bob Hallinen / Alaska Dispatch News)
Maureen Danberg of Juneau tees off at the Mount Fairweather Golf Course on a sunny Sunday afternoon in May. The golf course is nine holes of natural landscape near Glacier Bay National Park. There is antique farming equipment at several of the holes, remnants of a past Gustavus culture. (Anne Raup / Alaska Dispatch News)
Sunset over Kennecott Mines National Historic Landmark, located near McCarthy in Wrangell-St. Elias National Park and Preserve on May 15, 2011. (Loren Holmes / Alaska Dispatch News)
Clouds cover a portion of 12,010-foot Mount Drum in Wrangell-St. Elias National Park in December of 2006. (Marc Lester / Alaska Dispatch News)
Sam Sterling walks towards a hut perched on the slopes of Baked Mountain in the Valley of 10,000 Smokes, within Katmai National Park and Preserve, in June 2014. (Nathaniel Herz / Alaska Dispatch News)
A stream of ash and steam extends from Mount Redoubt, located in Lake Clark National Park, in April of 2009, in this view along the Seward Highway near Anchorage. Between December 1989 and April 1990, there were 23 major explosive events on Redoubt, raining ash over much of Southcentral Alaska and hindering air travel.    (Marc Lester / Alaska Dispatch News)
Mountains to the east of Denali National Park provide a rugged backdrop to the easternmost miles of the Denali Park Road in February of 2015. (Marc Lester / Alaska Dispatch News)
An owl is carved into a tree along a trail near Bartlett Cove in Glacier Bay National Park. (Anne Raup / Alaska Dispatch News)
Margerie Glacier in Glacier Bay National Park, Aug. 24, 2011. (Loren Holmes / Alaska Dispatch News)
A brown bear makes his way through brush at Katmai National Park. (Bob Hallinen / Alaska Dispatch News)
Sun-dimpled ice of Exit Glacier in Kenai Fjords National Park last March. (Marc Lester / Alaska Dispatch News)
Dick and Barbara Henningsen parked their 1956 Ford Crown Victoria at the overlook near Stony Dome, one of the first good views of Mount McKinley along the Denali Park Road on a clear day. Sixteen members of the Antique Auto Mushers of Alaska toured the park in style during September of 2003. (Marc Lester / Alaska Dispatch News)
President Barack Obama looks at Bear Glacier in Kenai Fjords National Park on his tour of Resurrection Bay last September. (Marc Lester / Alaska Dispatch News)
A sea otter watches a passing boat in Aialik bay in Kenai Fjords National Park on Aug. 20, 2014. (Loren Holmes / Alaska Dispatch News)
Aialik Glacier calves in Kenai Fjords National Park in 2014. (Loren Holmes / Alaska Dispatch News)
Glacial moraine stripes the surface of a glacier in Denali National Park. The glaciers are like conveyor belts that move rocks and gravel downward with the flow of ice.(Anne Raup / Alaska Dispatch News)
An aerial view of rivers in Lake Clark National Park in 2000. (Marc Lester / Alaska Dispatch News)
The concentration mill building is the centerpiece of the Kennecott Mines National Historic Landmark located near McCarthy in Wrangell-St. Elias National Park and Preserve. The National Park Service acquired most of the Kennecott mining town buildings in 1998. (Erik Hill / Alaska Dispatch News)
Icebergs along a beach between Margerie and Grand Pacific Glacier in Glacier Bay National Park, Aug. 24, 2011. (Loren Holmes / Alaska Dispatch News)
A brown bear sits in a grassy meadow in a downpour. The meadow, off the north shore of Chinitna Bay at Lake Clark National Park, attracted bears and cubs in July of 2000. (Marc Lester / Alaska Dispatch News)