Arizona:
Canyon de Chelly National Monument - http://www.nps.gov/cach/
Chiricahua National Monument - http://www.nps.gov/chir/
Fort Bowie National Historic Site -
(photo to right) http://www.nps.gov/fobo/
Glen Canyon National Recreation Area - http://www.nps.gov/glca/
Grand Canyon National Park - http://www.nps.gov/grca/
Hubbell Trading Post National Historic Site - http://www.nps.gov/hutr/
Juan Bautista de Anza National Historic Trail - http://www.nps.gov/juba/
Montezuma Castle National Monument - http://www.nps.gov/moca/
Navajo National Monument - http://www.nps.gov/nava/
Old Spanish National Historic Trail - http://www.nps.gov/olsp/
Petrified Forest National park - http://www.nps.gov/pefo/
Pipe Spring National Monument - http://www.nps.gov/pisp/
Saguaro National Park - http://www.nps.gov/sagu/
Sunset Crater Volcano National Monument - http://www.nps.gov/sucr/
Tonto National Monument - http://www.nps.gov/tont/
Tumacacori National Historical Park - http://www.nps.gov/tuma/
Tuzigoot National Monument - http://www.nps.gov/tuzi/

California:
Alcatraz Island - http://www.nps.gov/alca/
Cabrillo National Monument - http://www.nps.gov/cabr/
Channel Islands National Park - http://www.nps.gov/chis/
Death Valley National Park - http://www.nps.gov/deva/
Golden Gate National Recreation Area - http://www.nps.gov/goga/
Joshua Tree National Park - http://www.nps.gov/jotr/
Juan Bautista de Anza National Historic Trail - http://www.nps.gov/juba/
Lava Beds National Monument - http://www.nps.gov/labe/
Manzanar National Historic Site - http://www.nps.gov/manz/
Mojave National Preserve - http://www.nps.gov/moja/
Old Spanish National Historic Trail - http://www.nps.gov/olsp/
Pinnacles National Monument - http://www.nps.gov/pinn/
Point Reyes National Seashore - http://www.nps.gov/pore/
Presidio of San Francisco - http://www.nps.gov/prsf/
Redwood National & State Parks - http://www.nps.gov/redw/
Sequoia & Kings Canyon National Parks - http://www.nps.gov/seki/
Yosemite National Park - http://www.nps.gov/yose/

Colorado:
Bent's Old Fort National Historic Site - http://www.nps.gov/beol/
Curecanti National Recreation Area - http://www.nps.gov/cure/
Dinosaur National Monument - http://www.nps.gov/dino/
Florissant Fossil Beds National Monument - http://www.nps.gov/flfo/
Great Sand Dunes National Park & Preserve - http://www.nps.gov/grsa/
Mesa Verde National Park - http://www.nps.gov/meve/
Old Spanish National Historic Trail - http://www.nps.gov/olsp/
Rocky Mountain National Park - http://www.nps.gov/romo/
Sand Creek Massacre National Historic Site - http://www.nps.gov/sand/

Nevada:
Death Valley National Park - http://www.nps.gov/deva/
Great Basin National Park - http://www.nps.gov/grba/
Old Spanish National Historic Trail - http://www.nps.gov/olsp/

New Mexico:
Aztec Ruins National Monument - http://www.nps.gov/azru/
Chaco Culture National Historical Park -(photo to right) http://www.nps.gov/chcu/
El Camino Real de Tierra Adentro - http://www.nps.gov/elca/ 
Old Spanish National Historic Trail - http://www.nps.gov/olsp/ 
Pecos National Historic Park - http://www.nps.gov/peco/
Petroglyph National Monument - http://www.nps.gov/petr/
Salinas Pueblo Missions National Monument - http://www.nps.gov/sapu/

Utah:
Arches National Park - http://www.nps.gov/arch/
Bryce Canyon National Park - http://www.nps.gov/brca/
Canyonlands National Park - http://www.nps.gov/cany/
Capitol Reef National Park - http://www.nps.gov/care/
Dinosaur National Monument - http://www.nps.gov/dino/
Glen Canyon National Recreation Area - http://www.nps.gov/glca/
Hovenweep National Monument - http://www.nps.gov/hove/
Natural Bridges National Monument - http://www.nps.gov/nabr/
Old Spanish National Historic Trail - http://www.nps.gov/olsp/ 
Rainbow Bridge National Monument - http://www.nps.gov/rabr/
Zion National Park - http://www.nps.gov/zion/