Lehigh's Academic calendar can be found at catalog.lehigh.edu. There is also a link at the top of the RAS homepage.
Although the entire catalog can be viewed online, it is also available to be downloaded and printed. First, navigate to the catalog homepage. Select "Print Options," which is highlighted below.
There are three things that can be done from this menu. A screenshot is shown below. The first option is "Send Page to Printer." This allows you to simply print the page you're on. The other choices are "Download Page as PDF," and "Download Entire Catalog as PDF." These options can be useful if you want to save some information from the catalog to your computer.