What tone does the author create by referring to what was done to the glen canyon as "dam nation"? having thus seen glen canyon both before and after what we may fairly call its dam nation, i feel that i am in a position to evaluate the transformation of the region caused by construction of the dam. i have had the unique opportunity to observe first–hand some of the differences between the environment of a free river and a power–plant reservoir. a. a confident tone b. a relieved tone c. a religious tone d. a surprised tone