What is in parks besides trees? And is wilderness protected?

I have to do a project for land-use planning for science and have to have 3 parks and 3 areas of wilderness. Can I put parks in the desert or mountains? What is normally in parks (I know trees)...



Also, if I put an endangered species in a "wilderness" will it be "Protected" where people won't disturb it? thank you!



P.S. Do you know about how big the average park is (in square miles or kilometers)? thanks!!What is in parks besides trees? And is wilderness protected?
Typically, parks have grass and trees plus areas for recreational use--walking/running paths, bike trails, perhaps skate board rinks or places for ATVs, and improved areas with seating and picnic tables. However, a park could also have only the vegetation natural to a locale--eg, in a desert there would be cacti and other desert plants; but there would still be recreational facilities.



By definition a wilderness area is unimproved. It may or may not have legal protection and it may or may not totally exclude people. However, it would exclude anything mechanized--motorized (eg, ATV or snowmobile) or human-powered (mountain bikes). If people were allowed to visit they would do so along specific trails and camp in designated campsites if the wilderness was amenable to backpacking. The rest of the land would be undisturb habitat for the natural flora and fauna.



BTW, if we're talking "park" in the Colorado definition, it's a natural area that is open space with limited trees.What is in parks besides trees? And is wilderness protected?
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