Indian Grinding Rock State Historic Park is a

California State Park The California Department of Parks and Recreation, more commonly known as California State Parks, manages the California state parks system. The system administers 279 separate park units on 1.4 million acres (570,000 hectares), with over 280 ...

, preserving an outcropping of marbleized

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms w ...

with some 1,185 mortar holes—the largest collection of bedrock mortars in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and th ...

. It is located in the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primar ...

foothills, east of

Jackson Jackson may refer to: People and fictional characters * Jackson (name), including a list of people and fictional characters with the surname or given name Places Australia * Jackson, Queensland, a town in the Maranoa Region * Jackson North, Qu ...

. The park is nestled in a little valley above sea level, with open meadows and large specimens of

valley oak ''Quercus lobata'', commonly called the valley oak or roble, grows into the largest of California oaks. It is endemic to California, growing in interior valleys and foothills from Siskiyou County to San Diego County. Mature specimens may attain ...

that once provided the

Miwok The Miwok (also spelled Miwuk, Mi-Wuk, or Me-Wuk) are members of four linguistically related Native American groups indigenous to what is now Northern California, who traditionally spoke one of the Miwok languages in the Utian family. The word ...

peoples of this area with an ample supply of

acorn The acorn, or oaknut, is the nut of the oaks and their close relatives (genera '' Quercus'' and '' Lithocarpus'', in the family Fagaceae). It usually contains one seed (occasionally two seeds), enclosed in a tough, leathery shell, and b ...

s. The park was established in 1962 and listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...

in 1971. The native name for the site is "''Chaw’se''", the Miwok word for "grinding rock". Upon this rock they ground acorns and other seeds into

meal A meal is an eating occasion that takes place at a certain time and includes consumption of food. The names used for specific meals in English vary, depending on the speaker's culture, the time of day, or the size of the meal. Although they c ...

, slowly forming the cup-shaped depressions in the stone, which can still be seen today. Along with the mortar holes, the main grinding rock within the park features a number of

petroglyph A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions ...

s: circles, spoked wheels, animal and human tracks, wavy lines, etc. Some of these carvings are thought to be as much as two or three thousand years old and are now becoming difficult to discern. This association of rock art and bedrock mortar pits is unique in California. Except for one other small site, Chaw'se has the only known occurrence of mortars intentionally decorated with petroglyphs.

Chaw'se Regional Indian Museum

This museum within the park grounds features a variety of exhibits and a vast collection of Sierra Nevada Indian artifacts. A Miwok village complete with a ceremonial roundhouse has been reconstructed in the middle of the small valley and is registered as

California Historical Landmark A California Historical Landmark (CHL) is a building, structure, site, or place in California that has been determined to have statewide historical landmark significance. Criteria Historical significance is determined by meeting at least one of ...

#1001. The museum has been designed to reflect the architecture of the traditional roundhouse. Exhibited in this two-story museum are examples of the technology and crafts of the Miwok and other Sierra Nevada Native American groups. As a regional Indian museum, the collection at Chaw'se includes exhibits on various tribal groups, including: the Northern, Central and Southern Miwok,

Maidu The Maidu are a Native Americans in the United States, Native American people of northern California. They reside in the central Sierra Nevada (U.S.), Sierra Nevada, in the watershed area of the Feather River, Feather and American River, American ...

Konkow The Maidu are a Native Americans in the United States, Native American people of northern California. They reside in the central Sierra Nevada (U.S.), Sierra Nevada, in the watershed area of the Feather River, Feather and American River, American ...

Monache The Mono ( ) are a Native American people who traditionally live in the central Sierra Nevada, the Eastern Sierra (generally south of Bridgeport), the Mono Basin, and adjacent areas of the Great Basin. The Eastern mono is often grouped under th ...

Nisenan The Nisenan are a group of Native Americans and an Indigenous people of California from the Yuba River and American River watersheds in Northern California and the California Central Valley. The Nisenan people are classified as part of the lar ...

, Tubatulabal, Washoe, and

Foothill Yokuts Yokuts, formerly known as Mariposa, is an endangered language spoken in the interior of Northern and Central California in and around the San Joaquin Valley by the Yokuts people. The speakers of Yokuts were severely affected by disease, missio ...

Wildlife

Bird life varies depending on the season, but many species are seen year-round, including

turkey vulture The turkey vulture (''Cathartes aura'') is the most widespread of the New World vultures. One of three species in the genus '' Cathartes'' of the family Cathartidae, the turkey vulture ranges from southern Canada to the southernmost tip of So ...

s, California scrub and

Steller's jay Steller's jay (''Cyanocitta stelleri'') is a bird native to western North America and the mountains of Central America, closely related to the blue jay found in eastern North America. It is also known as the long-crested jay, mountain jay, and p ...

California quail The California quail (''Callipepla californica''), also known as the California valley quail or Valley quail, is a small ground-dwelling bird in the New World quail family. These birds have a curving crest or '' plume'', made of six feathers, tha ...

and

hairy woodpecker The hairy woodpecker (''Leuconotopicus villosus'') is a medium-sized woodpecker that is found over a large area of North America. It is approximately in length with a wingspan. With an estimated population in 2020 of almost nine million individ ...

northern flicker The northern flicker or common flicker (''Colaptes auratus'') is a medium-sized bird of the woodpecker family. It is native to most of North America, parts of Central America, Cuba, and the Cayman Islands, and is one of the few woodpecker spec ...

hermit thrush The hermit thrush (''Catharus guttatus'') is a medium-sized North American thrush. It is not very closely related to the other North American migrant species of ''Catharus'', but rather to the Mexican russet nightingale-thrush. The specific na ...

es,

wild turkey The wild turkey (''Meleagris gallopavo'') is an upland ground bird native to North America, one of two extant species of turkey and the heaviest member of the order Galliformes. It is the ancestor to the domestic turkey, which was originally d ...

s (non-native), and

California thrasher The California thrasher (''Toxostoma redivivum'') is a large member of family Mimidae found primarily in chaparral habitat in California and Baja California. It is the only species of ''Toxostoma'' throughout most of its range.Cody, M. L. (202 ...

s. In summer the bright colors of the western tanager,

northern oriole The northern oriole (''Icterus galbula''), considered a species of North American bird from 1973 to 1995, brought together the eastern Baltimore oriole The Baltimore oriole (''Icterus galbula'') is a small icterid blackbird common in eastern ...

calliope In Greek mythology, Calliope ( ; grc, Καλλιόπη, Kalliópē, beautiful-voiced) is the Muse who presides over eloquence and epic poetry; so called from the ecstatic harmony of her voice. Hesiod and Ovid called her the "Chief of all Muse ...

and

Anna's hummingbird Anna's hummingbird (''Calypte anna'') is a medium-sized bird species of the family Trochilidae. It was named after Anna Masséna, Duchess of Rivoli. It is native to western coastal regions of North America. In the early 20th century, Anna's hum ...

s can be seen in the woods around the meadow. Animal life in and around the park includes

deer Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the re ...

, fox,

gray Grey (more common in British English) or gray (more common in American English) is an intermediate color between black and white. It is a neutral or achromatic color, meaning literally that it is "without color", because it can be compose ...

and

California ground squirrel The California ground squirrel (''Otospermophilus beecheyi''), also known as the Beechey ground squirrel, is a common and easily observed ground squirrel of the western United States and the Baja California Peninsula; it is common in Oregon and ...

black-tailed jackrabbit The black-tailed jackrabbit (''Lepus californicus''), also known as the American desert hare, is a common hare of the western United States and Mexico, where it is found at elevations from sea level up to . Reaching a length around , and a ...

bobcat The bobcat (''Lynx rufus''), also known as the red lynx, is a medium-sized cat native to North America. It ranges from southern Canada through most of the contiguous United States to Oaxaca in Mexico. It is listed as Least Concern on the ...

s, bats, and occasionally a

mountain lion The cougar (''Puma concolor'') is a large cat native to the Americas. Its range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mammal in the Western Hemisphere. ...

black bear Black bear or Blackbear may refer to: Animals * American black bear (''Ursus americanus''), a North American bear species * Asian black bear (''Ursus thibetanus''), an Asian bear species Music * Black Bear (band), a Canadian First Nations group ...

Coyote The coyote (''Canis latrans'') is a species of canine native to North America. It is smaller than its close relative, the wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecological nich ...

calls can be heard on quiet summer nights. Indian Grinding Rock State Historic Park 2.png, Visitor center overview of park Indian Grinding Stone Park near Volcano, CA (6592061187).jpg, Chaw-Se building Overview of main grinding rock area.jpg Closeup of holes in Indian Grinding Rock State Historic Park.jpg, close up of grinding holes Roundhouse 2 Indian Grinding Rock State Historic Park.jpg, Roundhouse interior Roundhouse Indian Grinding Rock State Historic Park.jpg Sculpture at Indian Grinding Rock State Historic Park located in California's Sierra Nevada foothills, 12 miles east of the town of Jackson, California LCCN2013633760.tif, Sculpture at park

References

*''This article contains material from the

California Department of Parks and Recreation The California Department of Parks and Recreation, more commonly known as California State Parks, manages the California state parks system. The system administers 279 separate park units on 1.4 million acres (570,000 hectares), with over 280 ...

which, unles
otherwise indicated
is in the

public domain The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because those rights have expired ...

.''

External links

Official Indian Grinding Rock State Historic Park website
{{National Register of Historic Places California State Historic Parks Miwok Museums in Amador County, California Native American museums in California Parks in Amador County, California Protected areas of the Sierra Nevada (United States) Archaeological sites on the National Register of Historic Places in California Native American history of California California Historical Landmarks 1962 establishments in California Protected areas established in 1962 National Register of Historic Places in Amador County, California

Chaw'se Regional Indian Museum

Wildlife

See also

References

External links