Fall is that magical time of year when the air is crisp and clear and the leaves in many park units change from summer green to saturated shades of yellow, gold, orange and red. In this month’s column, contributing photographer Rebecca Latson discusses capturing those colors in your national park photography.

While invasive plant, animal, and fish species are attacking the National Park System, there are some success stories to note in the battle.

Arches National Park in Utah is of the size where you can see and do many things in a single day. Make the effort to spend more than one day to truly get a feel for this park with the “densest concentration of natural stone arches in the world.” If you are thinking of a trip to Arches, this Traveler’s Checklist will help you make the most of your red-rock adventures.

Arches and Canyonlands national parks, and no doubt many other units of the National Park System, are preparing for a busy Memorial Day weekend, and are advising visitors to expect heavy traffic, crowded trails, and limited parking.