Jim Brandenburg / Forest on lake shore, Judd Lake, Superior National Forest, Minnesota

Jim Brandenburg / Ice along the shore of Burntside Lake at sunset, Superior National Forest, Minnesota

Jim Brandenburg / Moose Lake shoreline covered in frost, Minnesota

Jim Brandenburg / Canoe bow with autumn trees, Discovery Lake, Superior National Forest, Minnesota

Jim Brandenburg / Red Pine (Pinus resinosa) at edge of lake in Boundary Waters Canoe Area Wilderness with 1200 miles of canoe routes, part of Superior National Park, Minnesota

Jim Brandenburg / Water Lily (Nymphaea sp) cluster in pond surrounded by coniferous forest, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Water Lily (Nymphaea sp) cluster in pond surrounded by coniferous forest, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Blueberry (Vaccinium sp) cluster fruiting, Superior National Forest, Minnesota

Jim Brandenburg / Breeze blown grass of lakeside sedge meadow, Moose Lake, Boundary Water Canoe Area Wilderness, Minnesota

Jim Brandenburg / Prickly Wild Rose (Rosa acicularis) petal, Discovery Lake, Superior National Forest, Minnesota

Benjamin Olson / Canoe on lake, Superior National Forest, Minnesota

Jim Brandenburg / Jack In The Pulpit (Arisaema triphyllum) flowers near waterfall, Superior National Forest, Minnesota

Jim Brandenburg / Northern White Cedar (Thuja occidentalis) forest, Superior National Forest, Minnesota

Jim Brandenburg / Cliff with lichen, Judd Lake, Superior National Forest, Minnesota

Jim Brandenburg / Honeymoon Falls at summer solstice, Judd Creek, Northwoods, Minnesota

Jim Brandenburg / Fox tracks on frozen lake, Superior National Forest, Minnesota

Jim Brandenburg / Snowshoe Hare (Lepus americanus), Superior National Forest, Minnesota

Jim Brandenburg / Moss covered stones in Judd Creek, Northwoods, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupis) pup, Superior National Forest, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupis) pup in tall grass, Superior National Forest, Minnesota

Jim Brandenburg / Common Loon (Gavia immer) spreading wings, Superior National Forest, Minnesota

Jim Brandenburg / Fireweed (Chamerion angustifolium) flowering near lake with kayaker, Superior National Forest, Minnesota

Jim Brandenburg / Red Fox (Vulpes vulpes), Superior National Forest, Minnesota

Jim Brandenburg / Paper Birch (Betula papyrifera) leaves just opening up during early spring rain, Superior National Forest, northern Minnesota

Jim Brandenburg / Moose (Alces alces andersoni) bull in pond, Superior National Forest, northern Minnesota

Jim Brandenburg / Waterfall and cabin, Northwoods, Superior National Forest, Minnesota

Jim Brandenburg / Maple (Acer sp) trees in autumn color, Snowbank Lake, Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota.

Jim Brandenburg / Ice along the shore of Burntside Lake at sunset, Superior National Forest, Minnesota

Jim Brandenburg / Kawishiwi Falls, Kawishiwi River, Boundary Waters Canoe Area Wilderness, near Ely, Minnesota

Jim Brandenburg / Aurora Borealis over Moose Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Aurora Borealis over Moose Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Thomas Lazar / Paper Birch (Betula papyrifera) forest, Twelve mile beach, Pictured Rocks National Lakeshore, Lake Superior, Upper Peninsula, Michigan, USA

Tim Fitzharris / Horseshoe Bay on Lake Superior, Pukaskwa National Park, Thunder Bay, Ontario, Canada

Jim Brandenburg / Tourist canoeing on lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Sunset through Pine (Pinus sp) trees, Burntside Lake, Superior National Forest, Minnesota

Jim Brandenburg / Campers watching sunset, Quetico Provencial Park, Canada

Jim Brandenburg / Frost-covered hill rising from boreal forest, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Early snowfall in coniferous forest, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Tourist canoeing in Discovery Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Tourist canoeing in Discovery Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Grass at waters edge and clouds reflecting in water, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Red Pine (Pinus resinosa) at edge of lake in Boundary Waters Canoe Area Wilderness with 1200 miles of canoe routes, part of Superior National Park, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) overlooking frozen lake, Superior National Forest, Minnesota

Jim Brandenburg / Autumn colored forest in Boundary Waters Canoe Area Wilderness, Northwoods, Minnesota

Jim Brandenburg / Aerial view of Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Tourist canoeing in the Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) looking through foliage, Superior National Forest, Minnesota

Jim Brandenburg / Granite outcropping in Boundary Waters Canoe Area Wilderness, Northwoods, Minnesota

Jim Brandenburg / Section 12 Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Islands of Shagawa Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Painted Turtle (Chrysemys picta) near waterfall, Superior National Forest, Minnesota

Jim Brandenburg / Pine (Pinus sp) trees, towering over young Maple (Acer sp) trees, North Arm Trail, Superior National Forest, Minnesota

Jim Brandenburg / Black Bear (Ursus americanus) and bee, Superior National Forest, Minnesota

Jim Brandenburg / Birch (Betula sp) trees, Moose Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) crossing stream, Superior National Forest, Minnesota

Jim Brandenburg / Western Blue Flag Iris (Iris missouriensis) flowers, Superior National Forest, Minnesota

Jim Brandenburg / Birch (Betula sp) sunlit grove, Superior National Forest, Minnesota

Jim Brandenburg / Black Spruce (Picea mariana) forest with Moose trail, Superior National Forest, Minnesota

Jim Brandenburg / Rookie Lake, Northwoods, Minnesota

Jim Brandenburg / Full moon over lake, Boundary Waters Canoe Area Wilderness, Minnesota

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Lupine (Lupinus sp) flowers, Gonzales Pass, Superior, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) cactus and wildflowers, Gonzales Pass, Superior, Arizona

Benjamin Olson / Boreal forest reflecting in lake, Superior National Forest, Minnesota

Benjamin Olson / Ruffed Grouse (Bonasa umbellus) male displaying at lek, Superior National Forest, Minnesota

Benjamin Olson / Canoe on lake, Superior National Forest, Minnesota

Benjamin Olson / Common Loon (Gavia immer), Superior National Forest, Minnesota

Benjamin Olson / Least Chipmunk (Tamias minimus), Superior National Forest, Minnesota

Benjamin Olson / Least Chipmunk (Tamias minimus), Superior National Forest, Minnesota

Benjamin Olson / Clouds reflect on calm surface of Swamper Lake in autumn, Superior National Forest, Minnesota

Benjamin Olson / Red Fox (Vulpes vulpes) yawning, Superior National Forest, Minnesota

Benjamin Olson / Red Fox (Vulpes vulpes) yawning in snow, Superior National Forest, Minnesota

Benjamin Olson / Red Fox (Vulpes vulpes) in snow, Superior National Forest, Minnesota

Benjamin Olson / Lodgepole Pine (Larix laricina) trees in swamp in fog at sunrise, Superior National Forest, Minnesota

Benjamin Olson / Common Loon (Gavia immer) in rain, Superior National Forest, Minnesota

Benjamin Olson / Black Bear (Ursus americanus) in swamp, Superior National Forest, Minnesota

Benjamin Olson / Kayak at sunrise on Junco River, Superior National Forest, Minnesota

Benjamin Olson / Clear-cut forest, Superior National Forest, Minnesota

Jim Brandenburg / Red Pine (Pinus resinosa) grove in early spring, Superior National Forest, Minnesota

Jim Brandenburg / Judd Creek, Northwoods, Superior National Forest, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) pair in winter, Superior National Forest, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupis) in snow, Superior National Forest, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupis) pup catching bugs, Superior National Forest, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupis) pup in tall grass, Superior National Forest, Minnesota

Jim Brandenburg / Common Loon (Gavia immer), Superior National Forest, Minnesota

Jim Brandenburg / Waterfall and icicles, Superior National Forest, northern Minnesota

Jim Brandenburg / Autumn mist over Discovery Lake, Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota

Jim Brandenburg / Dead warblers, Superior National Forest, Minnesota

Jim Brandenburg / Fresh ice on Moose Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Aurora borealis over Moose Lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Discovery Lake seen through coniferous forest, Minnesota

Jim Brandenburg / Full moon over lake, Boundary Waters Canoe Area Wilderness, Minnesota

Jim Brandenburg / Grass in Burntside River, Superior National Forest, Minnesota

Jim Brandenburg / Sunlight through fog and cedar trees, Superior National Forest, Minnesota

Jenny E. Ross / American black bear cub (Ursus americanus), age 6 months, standing in a refuge tree and peeling bark off in search of insects. The cub's mother was foraging nearby.Superior National Forest, Minnes...

Jenny E. Ross / American black bear cub (Ursus americanus), about 6 months, sitting in a refuge tree while its mother forages nearby. Superior National Forest, Minnesota. USA.June