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Show How National Parks and National Monuments Diff, There are 20 nntlona parlJ more than 70 national nwnuJj Generally speaking, national nJ- are areas preserved hy the fejjf government because of their I standing scenery, while nav monuments are either building"' areas preserved because o( t1 prehistoric, historic, scientific, 't logic or biologic Interest. For example, Carlsbad cavern, New Merlco Is classified as i J tlonal park, while Chaco canyon New Mexico Is listed as a naty monument of Interest because of J historic clilt dwellings. Though tj of the national parks are la j) West and Southwest, there are $ ers In all parts of the United SuJ In Alaska and Hawaii Both ks. I tlonal parks and national monuny are open to the public. DurinjJ last 25 years visitors registering national parks have Increased fcj about 108,000 annually to more tM 4,000,000 in 1935. There are inl ditlon eight national military paJ and 143 national forests with itc-1 area of 103,000 acres. Vas Star. I |