A nonprofit organization dedicated to conserving caves has purchased the Daleo Entrance to Mammoth Cave, a portal located on private land just a mile east of Mammoth Cave National Park in Kentucky.

Great Smoky Mountains National Park officials have announced the dates for firefly viewing in Elkmont. Shuttle service to the viewing area will be provided on Tuesday, May 30, through Tuesday, June 6. All visitors wishing to view the synchronous fireflies at Elkmont must have a parking pass distributed through the lottery system at www.recreation.gov.

There's a new visitor hub at Acadia National Park in Maine, where some of the visitor services offered in the past at park headquarters are moving to the Hulls Cove Visitor Center from May 1 through October 31. The NPS will direct visitors seeking park information and entrance passes to the Hulls Cove Visitor Center to avoid the confusion and congestion of park headquarters during the summer and fall.

Within hours after President Trump affixed his signature to an executive order directing the Interior secretary to review the Antiquities Act and nearly two dozen national monuments created since 1996, there was pushback from conservation and environmental groups, politicians, corporations, and stakeholders from around the country. If the president and Secretary Ryan Zinke were concerned about a lack of input on the monument designations, they're hearing plenty now.