Arizona has some good trout fishing, specifically where the Colorado River streams through the state. On the area called Lee’s Ferryboat (downstream of the Glen Canyon Dam, upstream of the Grand Canyon), nevertheless, warming water levels are beginning to threaten the trout.
Lee’s Ferryboat is a tailwater, given that the Glen Canyon Dam sits simply upstream. Typically, cold water releases from the dam keep this area of the Colorado River the ideal temperature level for both trout and trout fishing. With Lake Powell at traditionally low levels, nevertheless, the water coming through Glen Canyon Dam is heating up with each passing day.
According to this story from NBC 12 News in Arizona, water temperature levels in the Lee’s Ferryboat location are currently in the mid-60s.
You can learn more about the effects this might have on the Colorado River fishery in Arizona here.