Text by Troy Hibbitts
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Crockett county lies on the northwestern edge of the Stockton Plateau and on the southern edge of the Permian Basin. The western and southern portion of the county are composed of Limestone hills and mesas cut by canyons. The northeastern portion of the county is primarily rolling grassland habitat, unsuitable for L. alterna. The western boundary of Crockett county is the Pecos river, which forms a relatively deep canyon, the hillsides which make up the canyon's walls are prime habitat for alterna. Crockett county is fairly large, measuring 2,794 square miles in size.
Crockett county averages 18.2" of rain per year. This rainfall supports a wide variety of plant life. Mesquites, acacias, and creosotes predominate in the flats, while juniper and scrub oaks can be found on the hillsides. Cacti, lecheguilla, sotol, and yucca are common, particularly in rocky areas.
Crockett county has a population of 4,165 people, most of whom live in the city of Ozona. The only other "town" is Ft. Lancaster, a ghost town and state park near the Pecos River, inhabited only by a few park employees. Crockett county is mostly a ranching county, with sheep being the main business. Oil fields are also present, particularly in the northern part of the county.
POPULAR L. alterna LOCALITIES
For the amount of habitat present in the county, very few specimens have ever been collected here (no museum records exist), and no "popular" localities really exist. However, virtually any locality south of I-10 or west of Tx Hwy 137 which has suitable habitat could produce alterna.
US Hwy 190, East of Iraan
Ft. Lancaster, US Hwy 290
Howard Draw Road/FM 2083
Juno Road, Tx Hwy 163
I-10 - throughout its length in Crockett County