Rock Mary

Most prominent Oklahoma landmark seen on California Road by Capt. R. B. Marcy. First visited May 23, 1849, and U.S. flag raised on the peak by Lts. M. P. Harrison (brother of Pres. Benj. Harrison) and J.H. Simpson. Named in honor of 17 yr. Mary Conway, grand daughter of Arkansas Gov. Conway and cousin of President James Madison.


Rock Mary
May 23, 1840
This odd and unusual land feature was named on that date by Lieuts. J. H. Simpson and M. F. Harrison when they visited this site, planted a Flag on the crest and named the Rock for 17 year belle, Mary Conway, emigrant.
Oklahoma Historical Society, 1960

2nd Marker:

The American Flag
Rock Mary
From this point on May 23, 1849 the Flag of the United States was unfurled by Lts. J. H. Simpson and M. P. Harrison who gave this Rock its name. By this act they established this as a famous landmark relied on by countless thousands of western emigrants.
Oklahoma Historical Society, 1960
Old Marker: *On U.S. Highway 281 about one mile south of Hinton, Caddo County.*

Marker was not located at the above direction, the following direction are the correct location of markers.

From Route 66 & U.S. 281 (or I-40 & U.S. 281)
Go south 4 miles to down town Hinton, Ok
At the junction of U.S. 281 & OK 37
Go west 1.5 mi. the north .5 mi. the west 2 mi.
Then south 1.5 mi.
This point will be several hundred yards west of Rock Mary. (On Private Property)
Exploring Oklahoma History
Rock Mary is located in a amphitheater-shaped depression, The Rock is some sixty feet tall, it base is some two hundred feet in diameter. Two projections are see protruding from its top, the south one is higher and larger with a flat top of several square feet.

More information can be obtained from the Hinton Historical Society and Museum. P.O. box 2, Hinton, Oklahoma 73047

Listed National Register of Historical Places
Rock Mary *** (added 1970 - Site - #70000528)
4 mi. W of Hinton, Hinton
Historic Significance: Event
Area of Significance: Transportation
Period of Significance: 1825-1849, 1850-1874
Owner: Private
Historic Function: Landscape
Historic Sub-function: Underwater
Current Function: Agriculture/Subsistence
Links: * Directions from Rock Mary, Mark of Heritage, by Muriel H. Wright