1.   A caution to the reckless thrill-seeker who strays from the marked trail?

2.   A displaced ant that did not find a clearly marked trail or some of its nestmates might never make it back to its nest.

3.   But skiers go off of the marked trails risk being buried by an avalanche.

4.   Daily patrolling is necessary, if for no other reason than to tread on a marked trail so it will not disappear.

5.   For getting rid of calories, the hotel staff has created a collection of walking tours along marked trails through valleys, forests and vineyards in the area.

6.   For similar reasons, I always yield to hikers and horses, ride only on marked trails and generally practice low-impact riding.

7.   From the lake, marked trails lead to the slopes, where cable cars whisk hikers to the higher peaks.

8.   Just a simple sign, a marked trail or two, and a gravel parking lot at the entrance.

9.   The access is being opened even though there are no marked trails.

10.   The National Park Service offers visitors a list of recommended hikes on marked trails in both the valley and the high country.