Best site for hiking trails

[IHateMyJob2004]

What's the best site that summarizes hiking trails?

I'd love to know what the distances there are, elevations, "difficulty" ... etc.

 

[dullard]

I too would like to know this answer.

So far, the best that I have found is ProTrails (here is one of my favorite hikes):
http://www.protrails.com/trail/44/rocky-mountain-national-park-hallett-peak

Another good hike, take the Hidden Canyon side-trip along the way if you aren't afraid of needing chains on narrow ledges:
http://www.protrails.com/trail/105/zion-national-park-observation-point

But that website has some failings, such as missing a lot of common trails and difficulty searching for trails on most browsers.

 

[deadlyapp]

I use every trail a lot, also think I've used alltrail.