124 A GAZETTEER OF TEXAS. [bull. 224. 
Atlas sheet. 
Old Round Rock; village on International and Great Northern 
Rai 1 road, in Williamson County Georgetown. 
Oletha; post village in Limestone County. 
Oleys; creek, a small right-hand intermittent branch of Double 
Mountain Fork, a head branch of Brazos River. 
Olga; post village in Nolan County. 
Olin; post village in Hamilton County. 
Olive; post village in Hardin County; population, 383 (1890). 
Oliver; creek, a right-hand tributary to Trinity River, in North- 
ern Texas. 
Olivia; post village in Calhoun County. 
Olmos; creek, a right-hand intermittent tributary to Nueces 
River Brackett. 
Olnrus; creek, small intermittent branch of San Antonio River. . San Antonio. 
Olmus; post village in Guadalupe County. 
Olney; post village in Young County. 
Olomos; creek, a small tributary to Alacon Bay. 
Olympus; post village in Childress County. 
Omaha; post village in Morris County; population, 219 (1890). 
Omega; post village in Upshur County. 
Omen; post village in Smith County; population, 508 (1890). 
Ondee; post village in Hamilton County. 
Onion; branch, a small left-hand branch of Kickapoo Creek, 
t ributary to Brazos River Weatherford. 
Onion; creek, a large right-hand branch of Colorado River . . A anc0 - 
lAustin. 
Onion; creek, a left-hand, intermittent branch of Brady Creek, 
tri butary to San Saba River Brady. 
Onion; creek, a small left-hand branch of Station Creek, tribu- 
tary to Leon River Temple. 
Onion; creek, a small right-hand tributary to Trinity River . . Cleburne. 
Onion; gap in Brady Mountains, through which flows Onion 
Creek ■ Brady. 
Opal; post village in Wise County. 
Open; hollow in Uvalde County Brackett. 
Open Oak; creek, a right-hand tributary to Trinity River. 
Ophelia; post village, Rains County. 
Oplin; post village, Callahan County. 
Opossum; creek, a right-hand branch of Williamson Creek, /Georgetown. 
tributary to San Gabriel River. iTaylor. 
Opossum; hollow, a small left-hand intermittent branch of 
West Nueces River, tributary to Nueces Nueces. 
Opossum; hollow in Cooke County Gainesville. 
0'Q,uinn; post village in Fayette County. 
Ora; post village in Angelina County. 
Oral; post village in Hayes County. 
Oran; post village in Palo Pinto County. 
Orange; a southeastern county, with an area of 392 square 
miles. The population was 5,905; the county seat, Orange. 
The mean magnetic declination in 1900 was 7° 15'. The 
mean annual rainfall is 55 inches, and the mean annual 
temperature 70°. The county is traversed by the Choctaw, 
Oklahoma and Gulf, the Southern Pacific, and the Texas 
and New Orleans railroads. 
