Lake Roosevelt Fish Species. Native and hatchery rainbow trout, native and hatchery kokanee salmon, walleye, smallmouth bass, largemouth bass, yellow perch, lake whitefish, mountain whitefish, brown trout, brook trout, burbot, sturgeon, cutthroat trout, bull trout, black crappie, pumpkinseed, brown bullhead, yellow bullhead, channel catfish.
The war between the United States and Mexico had two basic causes. First, the desire of the U.S. to expand across the North American continent to the Pacific Ocean caused conflict with all of its neighbors; from the British in Canada and Oregon to the Mexicans in the southwest and, of course, with the Native Americans.
The Mexican-American War. General Winfield Scott's entrance into Mexico City, September 14, 1847, is depicted in this print by Carl Nebel. When war broke out against Mexico in May 1846, the United States Army numbered a mere 8,000, but soon 60,000 volunteers joined their ranks. The American Navy dominated the sea.