194 trips match your search for "United States"
NameTrip #DatesSpaces
Wilderness First Responder Recertification at Clair Tappaan Lodge in Norden, CA16992AApr 30–May 2, 20164
Galiuro Mountains and Redfield Canyon Wilderness: The Place Time Forgot, Arizona16032AMay 1–7, 20161
Backpacking Paria Canyon: A Week of Visual Surprises, Arizona and Utah16031AMay 1–7, 2016Be First on Waiting List!
Sea and Service at Point Reyes National Seashore, California16084AMay 7–14, 20161
Due to lodging considerations, available space is reserved for One Female
Spring Service in Arches National Park, Utah16085AMay 8–14, 20161
Capitol Reef Natural History Base Camp, Utah16040AMay 9–15, 2016Waiting List
Backpacking Paria Canyon: A Week of Visual Surprises, Arizona and Utah16031BMay 10–16, 2016Waiting List
Redrock Canyons of Escalante, Utah16033AMay 14–20, 2016Waiting List
Santa Rosa Island Service, Channel Islands National Park, California16086AMay 15–21, 2016Be First on Waiting List!
Waterfall Magic in the Columbia River Gorge, Oregon and Washington16054AMay 15–20, 2016Be First on Waiting List!
Moab Adventure for Women: Hike, Raft, and Ride in Southeast Utah16053AMay 15–21, 2016Be First on Waiting List!
Farm Service on Martha's Vineyard, Massachusetts16087AMay 15–21, 20161
Wildlife and Photography Cruise, Prince William Sound, Alaska16005AMay 15–22, 2016Be First on Waiting List!
Natural History of Arches and Island in the Sky, Arches and Canyonlands National Parks, Utah16041AMay 18–25, 20161
Cycling Missouri's Historic Katy Trail16190AMay 21–28, 20161
Kayaking Coastal Virginia: Blackwater and Beach16048AMay 22–28, 20163
Service at Antietam National Battlefield, Maryland16088AMay 22–28, 20161
New York City Park Service Trip, New York16090AMay 22–29, 2016More than 5
Rafting the San Juan River, Utah16060AMay 26–30, 2016Be First on Waiting List!
Natural History of Arches and Island in the Sky, Arches and Canyonlands National Parks, Utah16041BMay 27–Jun 3, 20162
Service in the Footsteps of Geronimo, Arizona16091AMay 28–Jun 4, 20165
Rafting the Wild and Free Yampa, Dinosaur National Monument, Colorado and Utah16061AMay 30–Jun 3, 20161
Gems of Kauai: Rainforests, Canyons, and the Deep Blue Sea, Hawaii16021AJun 4–12, 2016Waiting List
Backpacking the Brooks Range at the Moment of Spring, Arctic National Wildlife Refuge, Alaska16006AJun 5–15, 2016Be First on Waiting List!
Lake Michigan Bike and Hike, Sleeping Bear Dunes National Lakeshore, Michigan16191AJun 5–11, 2016More than 5
Star Party on the North Rim, Grand Canyon National Park, Arizona16251AJun 5–11, 2016Be First on Waiting List!
Monhegan Island: Jewel of the Sea, Maine16250AJun 5–11, 2016Be First on Waiting List!
Musk Ox Magic at Cape Krusenstern National Monument, Alaska16007AJun 5–11, 2016Be First on Waiting List!
Chaco Canyon Service, New Mexico16252AJun 11–18, 20161
Whales, Water, and Wildlife of the San Juan Islands, Washington16221AJun 12–17, 2016Waiting List
Hiking and Service on Oahu, Hawaii16022AJun 12–18, 2016Be First on Waiting List!
Grand Canyon Garden Party, Arizona16254AJun 12–18, 20161
Beginner Backpack by the Sea, Point Reyes National Seashore, California16110AJun 12–18, 20161
Coastal Plain to Arctic Peaks Wildlife Safari, Arctic National Wildlife Refuge, Alaska16008AJun 13–24, 2016Be First on Waiting List!
Packrafting and Hiking Wrangell-St. Elias National Park, Alaska16009AJun 18–25, 20164
Golden Trout Gambol, California16111AJun 18–25, 2016More than 5
Tastes and Tales of the Appalachian Trail, Great Smoky Mountains National Park, North Carolina and Tennessee16100AJun 19–25, 2016Be First on Waiting List!
Trail Service in Kachemak Bay State Park, Alaska16010AJun 19–25, 2016Be First on Waiting List!
Wanderlust and Wildflowers in Washington's North Cascades16223AJun 19–25, 20163
Archaeology and Trail Work in Dixie National Forest, Utah16255AJun 19–25, 20165
Painting Along the Sierra Trails, Tahoe National Forest, California16222AJun 19–25, 20163
World-Class Whitewater: Rafting the Middle Fork of the Salmon River, Idaho16062AJun 24–29, 20161
Family Fun and Service at Tahoe National Forest, California16205AJun 25–Jul 1, 2016More than 5
Family Trekking at Tamarack: Bear Valley, California16206AJun 26–Jul 1, 2016More than 5
Yoga and Hiking in the Redwoods, Marin County, California16224AJun 26–Jul 2, 2016More than 5
Trail Service in Kachemak Bay State Park, Alaska16010BJun 27–Jul 3, 20163
Family Rafting in Dinosaur National Monument, Utah16207AJul 1–4, 2016More than 5
Explore Glacier Bay by Yacht, Alaska16011AJul 2–10, 2016Waiting List
Bob Marshall Wilderness Backpacking and the Chinese Wall, Montana16155AJul 3–9, 2016Be First on Waiting List!
Royce Lakes and Humphreys Basin, John Muir Wilderness, California16112AJul 3–9, 2016More than 5
Natural History of Mt. Rainier Base Camp, Mt. Rainier National Park, Washington16178AJul 3–9, 2016Waiting List
Journey Around Post Peak to Lake 10005, Ansel Adams Wilderness, California16113AJul 4–9, 20165
Trail Work in California's Trinity Alps16256AJul 9–16, 2016Waiting List
Summer in the Stehekin Valley, North Cascades National Park, Washington16226AJul 10–16, 2016Be First on Waiting List!
Signature Day Hikes in Yosemite's Tuolumne Meadows, California16179AJul 10–16, 2016More than 5
Sierra Nevada Adventures for Families with Teens, Tahoe National Forest, California16208AJul 10–16, 2016More than 5
Majestic Mountains and Grand Scenery of the Eastern Sierra, California16175AJul 10–16, 2016More than 5
Green River Family Rafting Through Desolation and Gray Canyons, Utah16210AJul 11–15, 2016Be First on Waiting List!
Exploring Beartooth Glaciers, Montana16156BJul 14–20, 20163
Stehekin Valley Backpacking, Washington16145AJul 15–22, 2016Be First on Waiting List!
Family Ramble, Rocky Mountain National Park, Colorado16211AJul 16–23, 2016More than 5
Service with the Seven Devils, Hells Canyon Wilderness, Idaho16257AJul 16–23, 2016More than 5
Southern Yosemite Wilderness Medley, California16115AJul 17–24, 20161
Alpine Lakes in the Emigrant Wilderness, Sierra Nevada Mountains, California16114AJul 17–25, 20161
Just for Grandparents and Grandkids, Tahoe National Forest, California16212AJul 17–22, 20162
Evolution Valley Ascension, Kings Canyon National Park and John Muir Wilderness, California16116AJul 20–28, 20161
Grizzlies, Glaciers, and Climate Change: Dayhiking in Glacier National Park, Montana16227AJul 23–30, 2016Waiting List
Wandering in Bear Lakes Basin, John Muir Wilderness, California16117AJul 23–Aug 1, 20165
Lodge Adventure in America's Alps, North Cascades, Washington16228AJul 24–30, 2016More than 5
Exploring Beartooth Glaciers, Montana16156AJul 24–30, 2016Waiting List
Alpine Adventure in the Ansel Adams Wilderness, California16118AJul 24–30, 2016Waiting List
Sierra Vistas and Family Fun in Tahoe National Forest, California16214AJul 24–29, 2016More than 5
Highlights of Southeastern Yosemite: Waterfalls, Peaks, and Domes, California16119AJul 24–31, 20161
Multigenerational Teen Service in Yosemite's Tuolumne Meadows, California16213AJul 24–30, 2016Waiting List
Tramping Around Mineral King, Sequoia National Park, California16121AJul 25–31, 2016Be First on Waiting List!
Green River Family Rafting Through Desolation and Gray Canyons, Utah16210BJul 25–29, 2016More than 5
Wild and Scenic Rogue River Family Rafting, Oregon16215AJul 28–31, 2016More than 5
Across the Continental Divide in Rocky Mountain National Park, Colorado16157AJul 29–Aug 3, 20162
Lake Superior Service, Isle Royale National Park, Michigan16259AJul 29–Aug 6, 2016Waiting List
Journey Through Evolution, South Lake to North Lake, Kings Canyon National Park, California16122AJul 29–Aug 6, 20162
Hiking Crested Butte, Colorado16230AJul 31–Aug 6, 20162
Gros Ventre Wilderness Service, Wyoming16260AJul 31–Aug 6, 2016Be First on Waiting List!
Women's Backpack in the Emigrant Wilderness, California16123AJul 31–Aug 7, 2016Waiting List
Music in the Mountains: Hikes and Concerts in Stanislaus and Humboldt-Toiyabe National Forests, California16231AJul 31–Aug 6, 2016More than 5
Big Lakes and Big Sky: Day Hikes in the Wind River Range, Wyoming16229AJul 31–Aug 6, 20162
Food, Farms, and Wine: An Active Tour of Localvore Vermont16180AJul 31–Aug 6, 2016More than 5
Family Fun with Llamas in the Wyoming Wilderness, Teton National Forest, Wyoming16216AAug 1–5, 20163
Northern Yosemite Lakes, Meadows, and Peaks Adventure, California16295AAug 2–14, 2016Waiting List
Wilderness Cruise on Alaska's Inside Passage16013AAug 4–13, 20161
Hiking the Muir Trail from Devils Postpile to Tuolumne Meadows, Yosemite National Park, California16296AAug 5–16, 2016Be First on Waiting List!
Hiking High: Mammoth Crest to the Silver Divide, John Muir Wilderness, California16124AAug 5–9, 2016More than 5
Wind River Range Restoration, Wyoming16261AAug 5–14, 20164
Southern Colorado Sampler, Weminuche Wilderness and Great Sand Dunes National Monument16158AAug 6–14, 20165
Peaks and Passes in Yosemite and the Clark Range, California16125AAug 6–14, 2016More than 5
Women's Backpacking in the Sierra Alps: Yosemite National Park and Hoover Wilderness, California16126AAug 6–14, 2016More than 5
Kayaking the Na Pali Coast, Kauai, Hawaii16023AAug 6–12, 20161
Service and Whitewater Rafting in New River Gorge, West Virginia16263AAug 7–13, 2016Waiting List
Work and Play at Clair Tappaan Lodge, Tahoe National Forest, California16264AAug 7–12, 2016More than 5
Wandering the Goat Rocks Wilderness, Washington16146AAug 7–13, 2016Waiting List
Ridges, Rivers, Rainforests, and Waves in Olympic National Park, Washington16233AAug 7–12, 2016Waiting List
River of No Return: Family Rafting the Main Salmon River, Idaho16217AAug 9–14, 2016More than 5
Treasures of Blackcap Basin and the White Divide, Kings Canyon National Park, California16128AAug 11–20, 2016Waiting List
Swimming the Silver Divide, John Muir Wilderness, California16127AAug 11–15, 20165
Unplug, Unwind, and Dig In: Trail Work in the Idaho Panhandle16265AAug 13–20, 2016Waiting List
Grizzlies, Glaciers, and Climate Change: Dayhiking in Glacier National Park, Montana16234AAug 13–20, 2016Waiting List
Adventure High in Wyoming's Wind River Mountains16159AAug 13–20, 2016Waiting List
20s and 30s Whitney Summit, Inyo National Forest, California16129AAug 13–20, 2016Waiting List
Lake Hopping in the Wind River Range, Wyoming16160AAug 13–20, 20164
Ring the Canyon, Bryce Canyon National Park, Utah16267AAug 14–20, 2016More than 5
Coast, Whales, and Pilgrims: Service in Plymouth, Massachusetts16266AAug 14–20, 2016Waiting List
Truckin' Through the Tablelands, Sequoia National Park, California16130AAug 14–21, 2016Be First on Waiting List!
A Taste of the Sierra: Hikes, History, and Yoga, Tahoe National Forest, California16235AAug 14–19, 2016More than 5
National Outings Training Trip - Lodge-Based Day Hiking16998AAug 16–20, 2016Waiting List
Milestone Basin, Sequoia and Kings Canyon Parks, California16131AAug 18–27, 2016More than 5
Lakes of the Silver Divide, John Muir Wilderness, California16297AAug 18–28, 20163
Yosemite High-Country Backpacking on the Pacific Crest Trail, California16132AAug 19–27, 2016More than 5
Kings-Kaweah High Wire, Sequoia National Park, California16133AAug 20–27, 20162
Spider Meadow-Buck Creek Pass Loop, Glacier Peak Wilderness, Washington16148AAug 20–27, 2016More than 5
Trekking On- and Off-Trail in the Ansel Adams Wilderness, California16134AAug 20–27, 2016Be First on Waiting List!
Alpine Glory in Wyoming's Wind River Mountains16161AAug 20–27, 2016Waiting List
Backpacking the Eagle Cap Wilderness: The Eagle Creek Loop, Oregon16147AAug 20–27, 20164
Sea Kayaking at Isle Royale National Park, Michigan16196AAug 20–26, 2016Waiting List
Pioneer Basin and Mono Recesses, John Muir Wilderness, California16135AAug 21–28, 2016More than 5
Arctic Wilderness Fishing Base Camp in the Brooks Range, Alaska16015AAug 21–29, 2016Waiting List
John Muir Wilderness Service, California16262AAug 21–27, 2016More than 5
Ramble the Ambler, Gates of the Arctic National Park, Alaska16016AAug 22–Sep 2, 20164
Lodge-Based Day Hikes in the Colorado High Country16236AAug 27–Sep 3, 2016More than 5
Gardiner Basin High Country, John Muir Wilderness, California16136AAug 27–Sep 5, 2016Be First on Waiting List!
Mt. Humphreys Magic and Inspiration, John Muir Wilderness, California16137AAug 28–Sep 3, 2016Waiting List
Treasures of Yosemite's Northern Backcountry, California16120AAug 28–Sep 2, 2016More than 5
Sawtooth Sashay, Idaho16162AAug 28–Sep 3, 2016Waiting List
Missouri River Canoe Expedition, South Dakota and Nebraska16197ASep 2–9, 20164
Hopkins Basin and the Mono High Country, John Muir Wilderness, California16138ASep 2–6, 2016More than 5
Hot and Wild: Dayhiking Yellowstone National Park, Wyoming16237ASep 3–10, 2016Waiting List
Backpack Sampler in Olympic National Park, Washington16149ASep 3–11, 2016Waiting List
Beginner Backpack in Pictured Rocks National Lakeshore, Michigan16105ASep 5–9, 2016Be First on Waiting List!
Isolated Island Wilderness: Backpacking Isle Royale National Park, Michigan16106ASep 5–11, 2016Waiting List
Prince William Sound Wilderness Cruise, Alaska16017ASep 6–13, 2016More than 5
Wonderland Trail Loop, Mt. Rainier National Park, Washington16150ASep 6–16, 2016Waiting List
Trail Work at Mt. Rainier National Park, Washington16268ASep 10–17, 20163
Mt. Hood to the Columbia River Gorge, Oregon16151ASep 10–17, 2016Waiting List
Service in the Spectacular Yosemite Valley, California16270ASep 11–17, 20162
Petroglyphs, Canyons, and Mysteries of Grand Gulch, Utah16181ASep 11–17, 2016Waiting List
Creeks and Peaks: A Multisport Adventure in Idaho's Sawtooth Mountains16238ASep 11–17, 2016Waiting List
Kayaking and Service in the Appalachians, North Carolina16269ASep 11–17, 2016Be First on Waiting List!
Hut-to-Hut Traverse of the Presidential Range, New Hampshire16298ASep 11–16, 2016Waiting List
Working Among Wolves: Service at the Wolf Conservation Center, New York16271ASep 11–17, 2016Waiting List
Beginner's Coastal Ramble at Point Reyes National Seashore, California16139ASep 11–16, 2016Waiting List
Fantastic Four-Pass Loop, Maroon Bells-Snowmass Wilderness, Colorado16163ASep 11–17, 2016Be First on Waiting List!
Waterfalls, Alpine Lakes, and Wildflowers: Day Hikes in Colorado's San Juan Mountains16239ASep 11–17, 2016More than 5
The Best of Coastal Maine: Islands, Hiking, and Lobsters16240ASep 12–18, 2016Waiting List
Service in the Footsteps of Daniel Boone, Red River Gorge, Kentucky16272ASep 17–24, 2016More than 5
Historic North Bass Trail and Shinumo Amphitheater, Grand Canyon National Park, Arizona16165ASep 17–24, 20164
Service at Great Sand Dunes National Park, Colorado16290ASep 17–24, 2016More than 5
Autumn in the Stehekin Valley, North Cascades National Park, Washington16241ASep 18–24, 20162
Fall Day Hikes in the Crisp, Cool Colorado Rockies16248ASep 18–24, 2016More than 5
Service Among Ancestral Puebloan Ruins, Utah16276ASep 18–24, 20161
Scenic Northwoods Backpacking on the Superior Hiking Trail, Minnesota16107ASep 18–24, 2016More than 5
50-Plus Pyramid Lake Service and Fun, Nevada16274ASep 18–24, 2016More than 5
Fall Service at Bear Run Nature Reserve and Fallingwater, Pennsylvania16273ASep 18–24, 2016Waiting List
Preserving U.S. History: Service at Valley Forge and Hopewell Furnace, Pennsylvania16277ASep 23–29, 2016More than 5
Secrets of Kanab Canyon, Grand Canyon National Park, Arizona16166ASep 23–30, 20163
Scuba Service in Monterey Bay's Kelp Forest, California16278ASep 24–Oct 1, 2016More than 5
Fall Kaleidoscope in Porcupine Mountains Wilderness State Park, Michigan16182ASep 25–Oct 1, 20161
Acadia National Park Service, Maine16280ASep 25–Oct 1, 20163
50-Plus Service at Clair Tappaan Lodge, Tahoe National Forest, California16275ASep 25–Oct 1, 2016Waiting List
Forbidden Heart of the Rainbow, Navajo Nation, Arizona and Utah16167ASep 25–Oct 1, 2016More than 5
Autumn Hikes and Hudson Valley Vistas in New York's Catskill Mountains16242AOct 1–7, 2016More than 5
Hiking on the Wild Side: Potomac Highlands, West Virginia16244AOct 2–8, 2016More than 5
Piedras Blancas Light Station Service, Big Sur, California16281AOct 2–8, 2016More than 5
Tanner-Escalante-Grandview Route, Grand Canyon National Park, Arizona16168AOct 2–8, 20161
Fall Foliage Hiking in Vermont's Green Mountain National Forest16243AOct 2–7, 2016More than 5
Tanner-Beamer- Escalante: Historic Trails and Routes, Grand Canyon National Park, Arizona16169AOct 8–15, 2016More than 5
Carnival of Colors: Autumn in the Great Smoky Mountains, Tennessee16183AOct 9–15, 2016More than 5
Martha's Vineyard Service, Massachusetts16283AOct 9–15, 2016Waiting List
Current River Canoeing, Ozark National Scenic Riverways, Missouri16199AOct 9–13, 2016More than 5
Autumn Glory in Great Smoky Mountains National Park, Tennessee16245AOct 16–21, 2016More than 5
New York City Parks Service at the Historic Bartow-Pell Conservancy, New York16284AOct 16–23, 2016More than 5
Jewels of the Grand Canyon, Arizona16170AOct 16–22, 2016Waiting List
Ancestral Pueblos of Chaco Canyon and Northern New Mexico16246AOct 17–23, 2016Waiting List
Grand Staircase-Escalante Llama Hike, Utah16299AOct 18–24, 2016More than 5
Top of Texas, Guadalupe Mountains National Park16291AOct 22–29, 2016More than 5
Sea and Service at Point Reyes National Seashore, California16285AOct 22–29, 2016More than 5
Autumn Colors in the Ozarks by Foot and Paddle, Arkansas16108AOct 23–29, 2016Waiting List
Caribbean Island Kayaking, Florida Keys and Dry Tortugas, Florida16200AOct 23–29, 2016More than 5
LGBTQ Service at Fort Ord National Monument, Monterey, California16286AOct 23–30, 2016More than 5
Marvelous Muleshoe Ranch Service, Galiuro Mountains, Arizona16287AOct 30–Nov 5, 2016More than 5
Hidden Treasures of Florida's Gulf Coast: Kayaking Anna Maria Island16201AOct 30–Nov 5, 2016More than 5
Hot Springs, Falling Water, and Service in Saline Valley, California16288ANov 6–12, 20161
Puerto Rico: From the Coast to the Mountains16247ANov 13–20, 2016More than 5
Autumn Colors and Star-Filled Nights in Grand Canyon National Park, Arizona16171ANov 13–19, 2016Waiting List
Florida's Cool Springs and Wild Rivers16202ANov 13–19, 20161
Thanksgiving with the Pilgrims and Revolutionaries, Boston, Massachusetts16184ANov 23–27, 2016More than 5
Everglades Eco Adventure17400AJan 15–20, 2017More than 5

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