The Depression cost the Schreiners a lot of the YO land. By the time I met "Charley 3" (Charles Schreiner III), the YO was some 50,000 acres. An old high school chum and another buddy were guides there, in the '70s. Sally the eland was browsing happily on scrub oak...
Texas Parks & Wildlife started trying to reintroduce desert bighorn back in the 1960s, but lions and residual blue tongue negated their efforts. Beginning in the 1980s, the results became more successful. Some bighorn from Nevada (IIRC) have been acquired by trade, with efforts continuing in the Sierra Diablo Game Management Area, at Elephant Mountain, and down in the Black Gap WMA east of Big Bend National Park.
(Blue tongue is a disease of domestic sheep, and is deadly for wild sheep.)
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