iCalendar is a standard (RFC 2445 or RFC2445 Syntax Reference) for calendar data exchange. The standard is sometimes referred to as "iCal", which also is the name of the Apple Computer calendar program that provides one of the implementations of the standard.
iCalendar is heavily based on the earlier vCalendar industry specification by the Internet Mail Consortium (IMC). After iCalendar was released, IMC stated that it "hopes that all vCalendar developers take advantage of these new open standards and make their software compatible with both vCalendar 1.0 and iCalendar."
If you have software in your computer that supports this format standard, you can subscribe to the BC Alpine Online Calendar and have your desktop calendar up to date with BC Alpine events. If / when changes are made to the BC Alpine online calendar the changes would automatically be updated in your desktop calendar as well. Along with the ability to modify the iCalendar output to meet your needs (see the bottom of this page), this means that you will be able to have your calendar in sync with the events you are interested in on our calendar all the time.
There are many free and commercial softwares that you can use available for Windows, MacOS, and Linux. We recommend visiting Wikipedia for more information: http://en.wikipedia.org/wiki/ICalendar
In your "Account Settings", select the "Internet Calendar" tab and click "New...". You can then paste the link into the window that pops up in order to complete the subscription.