Using variables to select a range

I have a macro that finds two columns, a start date and an end date, on the same sheet. I used variable names for each of the two columns. I want to select these two columns and all columns between these two columns. My variables receive the correct value for their respective columns. I can't get the syntax correct to identify the Range. Here is my last attempt:

Worksheets("Payroll").Range(startColumn & stopColumn).Select

The variables are startColumn and stopColumn. Each will select the correct column, when tested separately.