WWII letter to the parents of a crewman lost in air combat training:
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"He did not lay down his life upon the field of battle, but his sacrifice is the same. He was preparing himself to defend those liberties and principles which had been taught to him from his early youth and which were a part of his very being. This may be small consolation to you in your bereavement, but you may well be proud both of his life and of his death."
Friends of the Wyoming Veterans Memorial Museum

B-24J 42-100023, lost on Casper Mountain, WY, June 17, 1944, Zorn crew​​
CAAB Practice Bombing Ranges
of Central Wyoming
Combat air training from Casper Army Air Base during 1943 to 1945 included air-to-ground and air-to-air gunnery missions over many areas of Wyoming and other States. Evidence includes smashed practice bomb casings, shot-up wooden targets still present on ranches, and .50 caliber casings peppering the ground in many areas.
Large target-shaped Practice Bombing Ranges 3 and 4 were excavated in central Wyoming northwest of Casper. The 1000-ft diameter targets were used for precision bombing training in preparation for the aerial bombardment campaign in Europe.

Bombing Range 3, about 20 miles northwest of Casper.

Bombing Range 4, about 30 miles northwest of Casper.