Technology and art often are intertwined to bring a subject to life. For Mike Cavaroc, Grand Teton National Park was the subject, and time-lapse photography was his tool for bringing the park to life.

This month marks the 150th Anniversary of the trip by then President-elect Abraham Lincoln from Springfield, Illinois to Washington, D.C. The National Park Service will commemorate the journey by sponsoring programs from February 11 to February 23 in sixteen cities and towns where Lincoln made stops and remarks during his trip.

Are the kokanee salmon in Lake Crescent at Olympic National Park a genetically unique population that dates back several thousand years to when the lake was formed, or are they progeny of hatchlings released nearly a century ago?

Next to the Thorofare region, "Cascade Corner" just might be the most over-looked place in Yellowstone National Park. But park officials aren't overlooking the ranger facilities there, and are embarking on a mission to see how they might be improved.