![]() | Ahjumawi Lava SpringsBrochure |
Brochure of Ahjumawi Lava Springs State Park (SP) in California. Published by California Department of Parks and Recreation.
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Ahjumawi
Lava Springs
State Park
Our Mission
The mission of California State Parks is
to provide for the health, inspiration and
education of the people of California by helping
to preserve the state’s extraordinary biological
diversity, protecting its most valued natural and
cultural resources, and creating opportunities
for high-quality outdoor recreation.
Reachable only by
shallow boat, Ahjumawi
Lava Springs State Park
is rich with brilliant
turquoise bays and tiny,
tree-studded islands
California State Parks supports equal access.
Prior to arrival, visitors with disabilities who
need assistance should contact the park at
(530) 335-2777. If you need this publication in an
alternate format, contact interp@parks.ca.gov.
CALIFORNIA STATE PARKS
P.O. Box 942896
Sacramento, CA 94296-0001
For information call: (800) 777-0369
(916) 653-6995, outside the U.S.
711, TTY relay service
www.parks.ca.gov
Ahjumawi Lava Springs State Park
N 41.1000° W 121.4120°
c / o McArthur-Burney Falls Memorial SP
24898 Highway 89
Burney, CA 96013
(530) 335-2777
© 2012 California State Parks (Rev. 2016)
lying off the shores of
Horr Pond and
Ja She Creek.
R
emote and wild, Ahjumawi Lava
Springs State Park is the site of one of
the nation’s largest systems of underwater
springs. Big Lake, the Tule and Fall rivers,
and the sparkling Ja She and Lava creeks all
meet here in the Fall River Valley basin.
At about 3,300 feet elevation, summers
are usually hot and dry; temperatures range
from 85 to 100 degrees. Evenings average
60 to 70 degrees. Winter months are cold
and wet, with occasional snow. Average
annual rainfall is 20 inches.
park history
The Ajumawi (Ah-joo-MAH-wee) people,
for whom this park is named, are one of
11 autonomous bands of the federally
recognized Pit River Tribe. The Ajumawi
have remained in this area, calling this land
home for thousands of years.
Ajumawi and its spelling variations —
Achomawi, Achumawi, and Ahjumawi —
refer to the people who have occupied
this area from pre-history to the present.
English translations of Ajumawi vary from
“river people” to “where the waters
come together.”
The Ajumawi people built rock fish traps
near the shoreline that channeled fresh
After Harry’s death in the 1960s, Ivy Horr
wished to see the land and its resources
preserved. In 1975, California State Parks
acquired the acreage that is now the park,
helped by a generous gift from Mrs. Horr.
Stone fish traps near Crystal Springs campground
spring water needed to attract trout and
Sacramento sucker fish. The traps held the
fish in a shallow place that allowed them to
be caught while spawning in winter. Once the
native people caught their self-imposed limit
of fish, the traps functioned as protected
spawning grounds, ensuring the successful
reproduction of the next generation of fish.
Today, descendants of the 11 bands
making up the Pit River Tribe still live in an
area known as “the hundred-mile square” in
parts of Shasta, Siskiyou, Modoc, and Lassen
counties. They are keeping their cultural
traditions alive for future generations.
By the 20th century, much of the former
Ajumawi homeland in the Fall River Valley
had been acquired by Pacific Gas and
Electric Company (PG&E) to further electrical
power development. In 1944, rancher and
former lumberman Harry Horr and his wife
Ivy purchased 6,000 acres from PG&E. The
Horrs used the land for cattle grazing and
leased it to hunting and fishing clubs.
Natural history
Ahjumawi Lava Springs State Park is
located in the Fall River Valley basin.
About two-thirds of the park’s 6,000 acres
are blanketed with geologically recent
(3,000 to 5,000 years old) lava flows from
the Medicine Lake volcano to the north.
Basaltic lava features include pit craters,
pressure ridges, and small lava tubes.
The park is bordered on the north by
the Modoc Plateau, built by repeated
eruptions and flows of basaltic lava. The
plateau contains abundant air bubbles,
lava tubes, and spaces that quickly
capture, contain, and convey surface
water, discharging about 1.2 billion gallons
of water a day into springs that feed the
valley’s lakes and streams.
Plants and Animals
The park sits near the border of the
Modoc and Klamath / North Coast
bioregions. Dominant plants include
western juniper, bitterbrush, curl leaf, and
birchleaf mountain mahogany, buckbrush
ceanothus, Oregon white oak, and
transitional hybrids between ponderosa
and Jeffrey pine.
The abundant spring water also invites
great numbers of both resident and
migratory bird species. Birds traveling the
RECREATION
The park is reachable only by a 2.5-mile
paddle in your own shallow-draft boat
(check for rentals in nearby communities).
Camping — Three primitive camping areas
sit near Ja She Creek, at Crystal Springs, and
at the north shore of Horr Pond. To register,
use the self-pay envelopes at each location.
Boating — Explore waterways, pools, and
lava flows from your canoe or kayak.
Hiking — Twenty miles of trails vary from 1.5
miles to more than five miles long. Views
along the way include Mount Shasta, Mount
Lassen, and some Cascade Range peaks.
Fishing — Licensed anglers will find good
fishing spots at Ja She Creek, Horr Pond, Big
Lake, and Crystal Springs.
Hunting is strictly prohibited within the
park boundaries, including waterways.
For specific hunting and fishing license
regulations, visit www.wildlife.ca.gov.
Shasta crayfish
Photo courtesy of Spring Rivers Ecological Sciences, LLC
Pacific Flyway include Canada and snow
geese as well as American white pelicans.
Birders can see blue-winged teals, Lewis’s
woodpeckers, and northern pygmy owls.
Ospreys — one of the largest concentrations
in California — nest in juniper trees, a
situation unique to the park.
Black-tailed deer herds spend winters
here, and coyotes frequent the grasslands.
Non-native muskrats can be seen in the
marshes and water’s edges. Waterways host
Sacramento suckers, largemouth bass, and
both brown and rainbow trout.
Native Species of Concern
Bald eagles make their home here,
attracted by abundant fish, small animals,
and carrion.
The indigenous Shasta crayfish is
considered endangered by state and
federal agencies. Only three inches long
at maturity, Shasta crayfish numbers have
diminished since the introduction of
non-native crayfish species. The native
crayfish have also lost habitat to dams and
agricultural practices.
ACCESSIBLE FEATURES
The boat dock and restroom at Horr Pond
primitive campground are accessible. The
park’s lava terrain is uneven and rugged. For
updates on accessibility, visit the website at
http://access.parks.ca.gov.
NEARBY STATE PARKs
• McArthur-Burney Falls Memorial SP
24898 Highway 89
Burney 96013
(530) 335-2777
• Castle Crags State Park
20022 Castle Creek Road
Castella 96017
(530) 235-2684
please remember
• Expect extreme heat in summer and cold
in winter. Weather here can change quickly;
check forecasts before visiting.
• Streams and waterways can be cold enough
to cause hypothermia.
• No potable water is available. Bring a filter
or adequate water for your stay.
• Life jackets are required for each boater.
• Look out for rattlesnakes, which can blend
into the dark-colored lava.
• Stinging nettles, mosquitoes, and ticks are
abundant. Use caution.
• Lava flows are unstable; wear sturdy hiking
shoes, and stay on marked trails.
• Before hiking, tell someone where you are
going and when you plan to return.
• Light fires only in the rings provided.
• Use caution when storing food and scented
items to avoid attracting bears.
• Except for service animals, pets are not
recommended. Dogs must be on a leash no
more than six feet long and confined
to tents at night.
• All natural and cultural features are
protected by law and may not be disturbed
or removed.
Ahjumawi Lava Springs
State Park
U.S. FOREST
S E RV I C E
P R O P E RT Y
Legend
Paved Road
0
0.25
0.5
0
0.4
0.8
1 Mile
1.2
1.6 Kilometers
Unpaved Road
Trail: Hike
Spatter Cone
Lo
op
Big Lake
Springs
Co
ne
Streams/Canals
Trail
Bridge
Ospr
ey
Lava Tubes
Campground: Primitive
Marsh
Crystal Springs
Campground
Ja She Creek
Ja She Creek
Campground
Parking
Eastman
Lake
Historic
Ranch House
t
le
Rat
Farm
T
e
ul
ll
r
ver
R ive
Riv
McArthur
Fall River
Mills
Trail
Horr Pond
Campground
Fa
McArthur-Burney
Falls Memorial SP
Big Lake
Conic
Depression
Shallow
Pond
L it
Ahjumawi Lava
Springs SP
s Tr l
er Trail
nip
Ju
Horr Pond
Ri
Restrooms
Sprin
g
Tra
il
Boat
Dock
er
l
Tu
e
Picnic Area
Lava
Spring
s
Boat Launch: Vehicle
A H J U M AW I
L AVA S P R I N G S
S TAT E PA R K
Spatter
B U R E AU O F L A N D
MANAGEMENT
P R O P E RT Y
Boat Launch: Hand
Lava
Accessible Feature
P R I V AT E
P R O P E RT Y
rsion Canal
McArthur Dive
From McArthur, turn
north from SR 299
onto Main St. (east
of Intermountain
Fairgrounds). After
½ mile, veer right
and cross over the
McArthur Diversion
Canal. Follow the
unnamed dirt road
another 3 miles to
the Rat Farm boat
launch and parking
area. (N 41.1000˚
W 121.4120˚)
to
McArthur
and Hwy 299
(3.5 miles)
© 2012 California State Parks (Rev. 2016)