The US National Parks are run by the National Park Service. US National Monuments, however, are run by either the National Park Service, the US Forest Service, or the Bureau of Land Management.
The national parks and the national monuments are administered and controlled by the Department of the Interior, U.S. government.
National Monumnet Service
Yes, some national parks and monuments are within urban areas.
Yes Brazil has national parks or monuments...
Vicksburg National Military Park is in Mississippi.
In national parks and monuments, no. In SOME national preserves, but only by special permission. In national forests, yes; but it's regulated.
He set aside 194 million acres as nature preserves, monuments and national parks.
Yes, there are.
the national parks historical parks battelfields memorials monuments are historic sites that are managed and taken care by the US Department of interiors
Alaska has eight national parks (some are also preserves), three national monuments, and three national preserves not connected with any national park. California has seven national parks (or eight, if you count Sequoia and Kings Canyon as separate), six national monuments, and one national preserve. I'll let you decide which state has the "greatest number."
In total there are 401
As of 2011, there are 58 areas in the US, administered by the National Parks Service and legally designated as national "parks" (as opposed to national monuments, lakeshores, recreational areas, etc).