My Garmin 101 is now trail tested in Big Bend. I carried it on the trail for Ernst Tinaja, Hot Springs Canyon, Grapevine Hill, Indian Head Mountain, Croton Springs, Casa Grande, and Mule Ears Peak.
It functioned great for the general data that it provides on an established trail. It was easy to monitor distance, time, and average speeds. Everyone in my party was always interested in how far we had gone, which allowed us to calculate how much farther we had to go.
I thoroughly enjoyed having it on the Mule Ears Peak trail (see upcoming trip report for MEP). This was a solo hike for me from the ME Spring to the peak. I dropped waypoints when I left the Smokey Creek Trail to go towards MEP and was able to find my exact entry point back. Also, I placed a waypoing on the first plateau of MEP, which I was also able to navigate to on my way down. I can't tell you how valuable having that type of information is on the trail.
Eventhough you may be on an established trail, a basic GPS unit will help in monitoring additional miles traveled while exploring within the trail area.
I know the 101 inut does not do topo maps, but for established trails it is great. I had a hightened sense of confidence working my way back from MEP, plus I was better prepared when planning my water and food.
I'll use the 101 again this summer at Glacier NP.
