California has 9 National Parks, and many more locations are managed under the umbrella of the NPS (National Park Service).
This list also includes National Monuments, National Recreation Areas, National Scenic Areas, Seashores and Historic Sites.
California National Park Maps:
Alcatraz Island
Cabrillo National Monument
Channel Islands National Park
Death Valley National Park
Devils Postpile National Monument
Fort Point National Historic Site
Giant Sequoia National Monument
Golden Gate NRA
John Muir NHS
Joshua Tree National Park
Kings Canyon National Park
Lassen National Park
Lava Beds National Monument
Manzanar NHS
Mojave National Preserve
Muir Woods National Monument
Pinnacles National Park
Point Reyes National Seashore
Presidio National Park
Redwoods National Park
Sacramento River NWR
San Joaquin River NWR
Santa Monica Mtns NRA
Sequoia National Park
Smith River NRA
Sutter National Wildlife Refuge
Tule Lake National Wildlife Refuge
Yosemite National Park
Whiskeytown Lake NRA

Whiskeytown Lake, West of Redding, CA (wildfire ravaged in 2018)
Utah National Park Maps:
Arches National Park Map
Bryce Canyon Map (NatGeo)
Bryce Canyon & Brian Head (Adventure Maps)
Bryce & Zion NP (North Star Mapping)
Capital Reef National Park Map
Canyonlands National Park Map
Grand Canyon National Park Map
Zion National Park Map
Utah National Parks – 8 parks

Zion Valley, from hiking trail to Angel’s Landing
Arizona National Park Maps:
Grand Canyon National Park Map (NatGeo)
Saguaro National Park (NatGeo)
Sedona & Flagstaff Map (NatGeo)