Glorieta pass . is a rugged, difficult place. c. was a toll road. b. was located on top of a mesa. d. is located in four corners.

a. is a rugged, difficult place.  

Glorieta Pass is said to be a rugged, difficult place because it is a mountain with an elevation of  7500 ft. It is located in the Sangre de Cristo mountains of the northern New Mexico.

It is an important part of history because this pass provided the most direct route through the mountains between the upper valleys of Pecos River and the Rio Grande. It had also been the site of an American Civil war battle in 1862.

a

Explanation:

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