This is an easy one, but very handy when you have saved one List Template from a list and you can’t find it.
Sharepoint leaves all the list templates under:
/_catalogs/lt/Forms/AllItems.aspx
“lt” in the URL means List Template. To access, just type the name of your site plus the line before, ie: http://sp2010dev/_catalogs/lt/Forms/AllItems.aspx .
Of course you can always access with the marvellous Site Action->Site Settings.
Enjoy!