What does the American cowboy tradition owe to the contributions by the Mexican vaquero like Gregorio Cortez?

Clothing style

Explanation:

The American cowboy tradition owes to the contributions by the Mexican vaquero like Gregorio Cortez to CLOTHING STYLE.

This is evident in the wearing of low hats which was eventually turned to high crowned wide sombreros, bolero jackets, and sashes worn by American Cowboys.

Similarly, the clothing style is reflected in the wearing of boots and large troweled spurs by American Cowboys.

Hence, the correct answer is CLOTHING STYLE

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.