First I wanted to comment on this photo. If you figure that the girls bikes were found about where the left front of the police cruiser is, and the purse was found right behind where the rower is: that would be approx. 20'.
I cannot find where I read about the dogs tracking the scent but I do have this:
BROUSSEAU: I just wanted to say one more thing, you know, about those bloodhounds that were brought in by the FBI. They did one at a time. One for Elizabeth and one for Lyric. And I was explain to you, so the bikes were found right where those -- the rocky area is, where they`re guessing the girls may have entered the lake at.
But I was there, I watched the bloodhounds continue on into this dense forest area, which is about 400 yards. I watched them go into that area and they positively identified both girls were at that location.
GRACE: Right, at the edge of the water.
BROUSSEAU: And --
GRACE: Go ahead.
BROUSSEAU: Yes, not, you know, not at the -- just at the edge of the water. If you continue on down the bike trail east, there is about approximately 400 acres of forest, dense forest to the left side, and that is where the dogs continued on to and picked up the girls` scent. And that`s when they stopped and brought the dog back and they did the next dog.
The next dog positively identified the next girl`s person to be in that forest. And that`s kind of where I believe it went cold for them. The dogs couldn`t pick up anymore scent. I`m not saying for sure that they couldn`t pick up more scent and go on further, but that is where the
investigators stopped, brought the dogs back, told us that, yes, the dogs positively identified the girls to go past the site where the bikes were dropped and farther on into the forest.
http://edition.cnn.com/TRANSCRIPTS/1207/19/ng.01.html
I know this is just Tammy's word, but I know I read it somewhere or it was in a press briefing. I have TONS of links, but as you well know, if you don't copy and paste info when it's first released, articles are upgraded and edited.
I'll look at the press releases later.