From the navigation header, click on the "Search" button. On the Search page, click on the "Search for sites by minerals found there". This will bring up a search page with up to eight different minerals (there is a minimum of two minerals that need to be entered). When this search is run there will be a display of a locality list for all the localities that contain the minerals in the search list. The minerals must have been found at the same locality. It does not incorporate minerals from sub-localities. For instance if you had Mineral A in "Loc D, T District" and mineral B in "T District", you would not get a match for the association of A and B in "T District".