Hundreds of undocumented migrants have been apprehended in Big Bend National Park in Texas in recent weeks, though park officials say the average park visitor shouldn't be impacted by the activity.

There are many faces to winter in a national park. Some park units have no snow, while others host feet of the fluffy white stuff. On sunny days, the atmosphere is clear and sharp, producing saturated colors for your camera. On not-so-sunny days, your camera’s LCD lens might be filled with varying shades of gray and white. Contributing photographer Rebecca Latson provides examples of what you might see through your camera’s lens and how to prepare for winter photography in a national park.

After 20 months of closures, the Boquillas Port of Entry within Big Bend National Park is scheduled to reopen on November 17. When the port of entry reopens, you'll be able to travel from the United States to the village of Boquillas, Coahuila, Mexico, as well as the Maderas del Carmen and Ocampo protected areas.

It's just too hot to enjoy camping in some parks during the summer, but fall and winter are prime times for outdoor activity in those areas. Here's a sampling of NPS sites where the "off season" in the rest of the country can be the best season for camping.