Where are templates located?

All site templates, that is, templates that handle the public front-end of your website, are to be found in the templates directory. For example, if your template is called "mytemplate", then it would be placed in the folder "[path-to-Joomla!]/templates/mytemplate".

All administrator templates, that is, templates that handle the private back-end of your website, are to be found in the administrator/templates directory. For example, if your administrator template is called "myadmintemplate", then it would be placed in the folder "[path-to-Joomla!]/administrator/templates/myadmintemplate".