are aquifers a gound water feature? If so, list some please?

Answer 1

An aquifer is a water-bearing layer of rock or sediment capable of holding and transmitting fluid such as water (an underground natural reservoir of water). There are man-made concrete aquifers that hold and channel water above ground.
There is a total of 62 principal aquifers (a regionally extensive aquifer) underlaying the States. There are many, many smaller and minor ones.

Some examples of aquifers: – here is a list of the major aquifers in Texas - don't know if they are 'principal' or not - I think they are but am not 100%.
1. Ogallala Aquifer
2. Seymour
3. Hueco-Mesilla Bolson
4.Cenozoic Pecos Alluvium
5. Edwards-Trinity
6. Trinity
7. Edwards (BFZ)
8. Carrizo-Wilcox
9.Gulf Coast

The Gulf Coast Aquifer is quite large. Take a look at the Texas map to see where it is and then take a look at the U.S. map (link is at the bottom) and see how large it is.
Here is the Texas' map (shows where aquifers are and it is easy to see and read)
http://www.texasep.org/html/wqn/wqn_4grw_aqu.html


If you go to this site and under wall maps for sale, click on Principal Aquifers. When that section pops up then click the map and you will be able to see where all the principal aquifers are located. You can not read any names but you can see quite clearly the various aquifers.
http://www.nationalatlas.gov/wallmaps.html#aquifers

Answer 2

Aquifers are natural reservoirs for ground water. I don't know specific names right off but there is a huge one in the middle US that runs from Texas pretty much up to the top of the country. Try Googling US aquifers or large aquifers to see if you get some names.

Answer 3

Yes, they are the primary ground water feature. I'm from Florida, so I'll give you examples from there: The Floridan Aquifer (!), the Biscayne Aquifer, and the Sand and Gravel Aquifer (yes, that's really its name.).