What Is The Meaning Of Glacial Erratic Pebbles?

Erratic: a. (ically), uncertain, irregular, in movement, conduct, opinion, &c.
Glacial: (or gla'shl), a. Of ice (-epoch when northern hemisphere was mostly covered with ice-sheet) that's what the dictionary has to say about that.

Glacial erratic pebbles are nothing but stones and rocks displaced from their original formations and ending up erratically among formations of other types owing to the movement of glaciers, according to what geologists say; earlier still they were supposedly proof of a biblical flood, but now as the world is no longer flat is not believed to be the case. There are of course rational explanations for why a rock from one part of the world would end up in the other without any postage being paid, and rockfalls and landslides which left boulders on glaciers(around 14000 years ago) which later decided to relocate(12500 years ago) seems to be the primary reason for this phenomenon.

The most common examples of glacial erratic pebbles are the Big Rock erratic in Canada, a garage sized erratic in the Cougar mountains near Seattle, White rock at British Columbia, a foothill erratic train which as its name suggests is a line stretching for 400 miles, and there's even an Erratic Rock State park in Oregon dedicated to 40 of these wonders.