Mountain Ash Creek - Grassy Lake Reservoir

Starting your journey near Teton County, Wyoming, the Mountain Ash Creek - Grassy Lake Reservoir trail offers an invigorating 18 km (approximately 11 miles) out-and-back adventure with an elevation gain of around 500 meters (1,640 feet). This medium-difficulty trail is perfect for hikers looking to immerse themselves in the natural beauty of the region while enjoying a moderately challenging hike.

Getting There

To reach the trailhead, you can drive or use public transportation. If driving, head towards the nearest significant landmark, which is the town of Jackson, Wyoming. From Jackson, take US-191 N/US-26 W/US-89 N towards Moran Junction. Continue on this route until you reach Grassy Lake Road, where you will find the trailhead. For those using public transport, buses from Jackson can take you to Moran Junction, from where you might need a taxi or rideshare service to reach the trailhead.

Trail Overview

The trail begins near the serene Grassy Lake Reservoir, a picturesque spot that sets the tone for the rest of your hike. As you start, you'll be greeted by the gentle sounds of Mountain Ash Creek, which will accompany you for a significant portion of the trail. The initial 3 km (1.9 miles) are relatively flat, allowing you to ease into the hike while enjoying the lush greenery and occasional wildlife sightings, including deer and various bird species.

Elevation Gain and Terrain

After the first 3 km, the trail begins to ascend more steeply. Over the next 5 km (3.1 miles), you'll gain approximately 300 meters (984 feet) in elevation. This section can be a bit strenuous, so take your time and enjoy the stunning views of the surrounding mountains and valleys. The trail is well-marked, but it's always a good idea to have a reliable navigation tool like HiiKER to ensure you stay on track.

Significant Landmarks

Around the 8 km (5 miles) mark, you'll come across a beautiful meadow that offers a perfect spot for a rest. This meadow is often filled with wildflowers during the spring and summer months, creating a vibrant tapestry of colors. Continuing on, you'll reach the highest point of the trail at around 9 km (5.6 miles), where you can take in panoramic views of the Teton Range and the expansive Grassy Lake Reservoir below.

Historical Significance

The region around Mountain Ash Creek and Grassy Lake Reservoir is rich in history. The area was historically inhabited by Native American tribes, including the Shoshone and Bannock peoples, who used the land for hunting and gathering. In the late 19th and early 20th centuries, the region saw an influx of settlers and trappers, contributing to the area's cultural tapestry. As you hike, you may come across remnants of old cabins and campsites, offering a glimpse into the past.

Wildlife and Flora

The trail is home to a diverse array of wildlife. Keep an eye out for elk, moose, and even the occasional black bear. Birdwatchers will be delighted by the variety of species, including eagles, hawks, and numerous songbirds. The flora is equally impressive, with dense forests of pine and aspen, interspersed with open meadows filled with wildflowers.

Final Stretch

The final 2 km (1.2 miles) of the trail descend gently back towards the Grassy Lake Reservoir, providing a relaxing end to your hike. The descent offers more opportunities to spot wildlife and enjoy the tranquil sounds of Mountain Ash Creek.

Preparation Tips

Given the moderate difficulty of the trail, it's essential to come prepared. Wear sturdy hiking boots, bring plenty of water, and pack some snacks or a light meal. Weather in the Teton County area can be unpredictable, so dress in layers and be prepared for sudden changes. Always check the weather forecast before heading out and let someone know your hiking plans.

This trail offers a perfect blend of natural beauty, historical significance, and moderate physical challenge, making it a rewarding experience for any hiker.