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The elevation of U.S. states may be described in several ways. These include: : * the elevation of their highest point; : * the elevation of their lowest point : * and the difference between (range of) their highest points and lowest points. The following list is a comparison of elevation absolutes in the United States. Data include interval measures of highest and lowest elevation for all fifty states and Washington, D.C..〔 Originally published in 1995.〕 Which state is "highest" and "lowest" is determined by the definition of "high" and "low". For instance, Alaska could be regarded as the highest state because Denali, at , is the highest point in the United States. However, Colorado, with the highest mean elevation of any state as well as the highest low point, could also be considered a candidate for "highest state". Determining which state is "lowest" is equally problematic. California contains the Badwater Basin in Death Valley, at below sea level, the lowest point in the United States; while Florida has the lowest high point, and Delaware has the lowest mean elevation. Florida is also the flattest state, with the smallest difference between its highest and lowest points. The list of highest points in each state is important to the sport of highpointing, where enthusiasts attempt to visit the highest point in each of the contiguous forty-eight states or in all fifty states. As of 2006, 155 people had reached all fifty state highpoints. Roughly 200–300 people attend the Highpointers Club convention each year.〔(【引用サイトリンク】title=Highpointers Club Frequently Asked Questions )〕 All elevations in the table below have been adjusted to the North American Vertical Datum of 1988.〔(【引用サイトリンク】title=What is a geodetic datum? )〕 The mean elevation for each state is accurate to the nearest . ==Elevation table== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of U.S. states by elevation」の詳細全文を読む スポンサード リンク
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