Field Trip led by Park Ranger Daniella Barraza. The iNaturalist app will be used to record Cheatgrass (Bromus tectorum) presence, so please have iNaturalist on your phone and an active account. Using iNaturalist is an option, so you are welcome to join us on the hike regardless. Pine Tree Trail is a moderately strenuous 4-mile loop. We will hike as slow as the slowest hiker. This trail is located in Wilderness, so we will be limiting it to no more than 12 participants including the guide. This will be a nature walk to enjoy the outdoors. However, it will be focused on learning to identify and record Cheatgrass (Bromus tectorum). Cheatgrass is an invasive species that is a big problem in the West and is becoming a growing problem in New Mexico. Pine Tree Trail is one of those unfortunate places where you can find it growing. Meet at Pine Tree Trail parking lot adjacent to the trailhead at 9 a.m. Directions: From the Las Cruces/ US 70 exit #6 on Interstate 25, head northeast on US 70. Travel 14.5 miles and turn right at the Aguirre Springs Campground Sign. Head southeast for 5.8 mi. Stop at the self-service station and pay the $5 entry fee. Keep going for 0.1 mile and pull into the parking area on the left. The Pine Tree trailhead is on the right side of the road, past the station. Participants must sign a release of liability at the parking lot, not wander from the group, and inform field trip leader(s) if they need to leave the trip for any reason. Children must be accompanied by parents. Bring water, snacks, good hiking shoes, hat, etc.