CNGNow.com provides a CNG fuel station locator. The CNG Stations page opens up to a map of the United States showing all active and planned stations. CNG stands for compressed natural gas.
A search field is on the upper left, just above the map. Inputting an address, a city or ZIP code into the search field and clicking the Go button brings up the designated area. Clicking on the Active Stations button on the top of the map shows all available stations, along with pricing information.
Selecting an orange station marker brings up the name of the station and the address. A More Info link under the name leads to directions, phone number and operating hours for that locale.