A day after the Trump administration announced its intent to be more aggressive in locating and permitted the mining of "critical minerals such as cobalt, chromium, and lithium, Democrats in the House of Representatives pushed for passage of legislation that would protect Grand Canyon National Park and Chaco Culture National Historical Park from mining.

Yet another break in Grand Canyon National Park's main water pipeline has prompted officials to institute water conservation measures on the North Rim of the park.

Nearly 300 million years ago, in a sandy desert now preserved as Coconino sandstone at Grand Canyon National Park, some creatures walked across an area left moist very likely by an oasis. Those tracks, revealed today in a remote area of the national park, likely point to the transition of amphibians to reptiles and reflect another of the wonders held within the National Park System.

How many of you automatically think about Instagram when you see a square-formatted image? Sure, the square format is the way to go with this popular social media application, but there are other advantages to the square format, beyond Instagram. Contributing photographer Rebecca Latson discusses these advantages and how you can use them with your own national park photography.