How do you create a "geodata" object with borders information (such as in the built-in data set, ca20)? I've looked at the documentation for as.geodata but do not see instructions on how to do this. Thank you. -- Laura ******************************************* Laura Chihara Professor of Mathematics 507-222-4065 (office) Dept of Mathematics 507-222-4312 (fax) Carleton College 1 North College Street Northfield MN 55057