Residents and elected officials are speaking out against a proposed border barrier through Texas’ biggest state park and one of the jewels of the national park system.

Texas Parks and Wildlife reported that a hiker was rescued Friday after getting lost at Big Bend Ranch State Park without food or water in 106-degree heat. A hiker at the 300,000-acre Big Bend Ranch State Park got lost on the trail. The next morning, another park police officer was informed about a possible lost hiker, Texas Parks and Wildlife officials said in a statement. An additional game warden, two state park rangers, a U.S. Border Patrol agent and a Presidio County Sheriffs Deputy were able to help the hiker climb back over the pour-offs, officials said. Related: Overnight camping reopens at Texas State Parks, reservations can be made starting this week