Reservation Calendars Below are our reservation calendars for department vans and rooms. Please check the calendars before you book. Reserving Department Vans Accessing the Calendar: To make Van reservations, please check the calendar, then login to Geology Calendar with the Geology Departments Gmail account. Note: The calendars will not prevent double-booking. All Rooms Reserving Rooms To make room reservations, please check the schedule, then login to Geology Calendar with the Geology Departments Gmail account. Note: The calendars will not prevent double-booking.