Colorado Preservation, Inc., is holding its annual conference, Saving Places 2004: The Business of Preservation, Feb. 5-7 in Denver. The event will include workshops, educational sessions and a trade show.

The annual meeting of the American Association for the Advancement of Science will be in Seattle, Feb. 12-16. Seminars include those sponsored by AAAS, as well as by the National Association of Science Writers.

Throughout 2004, The Nature Conservancy is offering naturalist workshops at two of its Colorado preserves, the Carpenter Ranch near Steamboat Springs and the Medano-Zapata Ranch in the San Luis Valley. Tours of other spots in the state are also scheduled.