
Since the late 1980s the NPS has constructed a number of buildings for island rangers and maintenance workers. South of the upper ranch house, a generator building, fuel storage building, and solar panels provide electrical power and fuel.
In 1998-99 the NPS constructed a residential compound for rangers, researchers, and maintenance personnel on a hill above the ranch complex. At a site across Windmill Canyon the NPS constructed a maintenance and water supply facility with a shop, pumphouses, storage tanks, and utility buildings.
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Itineraries across USA

Acadia

Arches National Park

Badlands

Big Bend

Biscayne

Black Canyon Of The Gunnison

Bryce Canyon

Canyonlands

Capitol Reef

Carlsbad Caverns

Channel Islands

Congaree

Crater Lake

Cuyahoga Valley

Death Valley

Dry Tortugas

Everglades

Gateway Arch

Glacier

Grand Canyon

Grand Teton

Great Basin

Great Smoky Mountains

Guadalupe Mountains

Haleakalā

Hawaiʻi Volcanoes

Hot Springs

Indiana Dunes

Isle Royale

Joshua Tree

Kenai Fjords

Kobuk Valley

Lassen Volcanic

Mammoth Cave

Mesa Verde

Mount Rainier

North Cascades

Olympic

Petrified Forest

Pinnacles

Rocky Mountain

Saguaro

Shenandoah

Theodore Roosevelt

Virgin Islands

Voyageurs

White Sands

Wind Cave

Yellowstone

Yosemite

Zion