Tennant, CA

Ahjumawi Lava Springs State Park

State Park

5,874 acres. Open Access

Entrance: $0

Castle Crags State Park

State Park

3,716 acres. Open Access

Entrance: $0

Lava Beds National Monument

National Monument

Lava Beds National Monument is a land of turmoil, both geological and historical. Over the last half-million years, volcanic eruptions on the Medicine Lake shield volcano have created a rugged landscape dotted with diverse volcanic features. More than 800 caves, Native American rock art sites, histo...

Entrance: $25

Activities: Auto and ATV, Scenic Driving, Astronomy, Stargazing, Biking, Road Biking, Camping, Backcountry Camping, Car or Front Country Camping, Group Camping, RV Camping, Caving, Food, Picnicking, Guided Tours,...

Weather: Park elevations range from 4,000 to 5,700 feet. Cold weather is possible any time of year, and snow has been recorded in all months. Winter day­time highs average 40°F; lows average 20°F. Morning fog ...

McArthur-Burney Falls Memorial State Park

State Park

805 acres. Open Access

Entrance: $0

Tule Lake National Monument

National Monument

Tule Lake National Monument includes both Tule Lake Segregation Center, the largest and most controversial of the sites where Japanese Americans were incarcerated during World War II, and Camp Tulelake, which was first a Civilian Conservation Corps camp, then an additional facility to detain Japanes...

Entrance: $0

Activities: Guided Tours, Self-Guided Tours - Walking, Self-Guided Tours - Auto, Museum Exhibits, Shopping, Bookstore and Park Store

Weather: Summer daytime highs average 75° to 80°F; lows average 50°F. Occasional thunderstorms occur in summer. Winter daytime highs average 40°F; lows average 20°F. Morning fog is frequent from autumn through...

Whiskeytown National Recreation Area

National Recreation Area

Whiskeytown Lake’s crystal-clear waters are iconic, but this 42,000-acre National Recreation Area offers much more. Explore waterfalls, hike rugged trails, uncover Gold Rush history, and witness the resilience of nature in its post-fire recovery. Adventure awaits at every turn—Whiskeytown is calling...

Entrance: $15

Activities: Astronomy, Stargazing, Biking, Mountain Biking, Road Biking, Boating, Motorized Boating, Sailing, Camping, Backcountry Camping, Car or Front Country Camping, Horse Camping (see also Horse/Stock Use), ...

Weather: Whiskeytown NRA is in a Mediterranean climate, which means hot, dry summers followed by cool, wet winters. Summer temperatures often reach the upper 90's to lower 100 degrees Fahrenheit, as well ...