Hallo little!
I've never studied that context, but I imagine people arrived in North America during the last Ice Age, when it was "easier" to cross the Atlantic Ocean by boarding the mass of ice (or walking on it).
I imagine that they could have used the same tools you find in Europe in that period: let's say 18'000 b.p, when the ice mass had its maximum extension - this date is just a supposition, howewer.

18'000 b.p., people in Europe used small, refined flint blades, known as "gravettes" and "micro-gravettes", to make a particular type of arrow, similar to a harpoon.
They even used bone and antler for needles, and had flint engravers and scrapers - using these tools to work leather and fur and make clothes, bags and blankets.
They had flint blades of a certain length, some with a peduncle for a better grip inside the handle, and all of them were retouched for a better cut. They used them as knives, and some bigger ones as spear points.

I hope to have helped you, you could try to google "Solutrean" and "Magdalenian", periods between 21'000 and 10'000 b.p., for further information!
Greetings,
Mauro.

Oh yes, it is sure! I forgot to say this, but, as far as I remember, the migration through the Bering Sea is certain, while that across the Atlantic was uncertain until recent times. There have been 2 migrations, in fact, and this is the reason why most Native Americans had Mongolian's eyes 
But I know nothing about the Bering migration, so I'm talking only for the Atlantic one.
It seems to me that somewhere near Terranova, or Nova Scotia, a depot has been found containing a lot of flint blades and point, an offer to some Gods like the ones found in France and Northern Spain.
But I believe that the Bering migration was more ancient, because the Bering Sea is smaller than the Atlantic and thus the ice should covert it more quickly - making the crossing easier and in a most ancient time.
Greetings,
Mauro.

Soon I plan on starting to learn how to knap flint and other stone materials,  I have always been interested in them form an early age,  and I think its best to start out young right now soo i can possibly become somewhat of an expert,  I think I already know the basics of it,  just need the proper tools and right stone materials,  then its stone breakin time  
vid of a guy makin a clovis style point
http://www.youtube.com/watch?v=jRax_a8t4C4&feature=related

i've noticed it to, Mauro. it depends on where it is from, of course, but i've found that flint has a 'fishy' smell and this is stronger in the less chalkier pieces. i don't know if this is a product of the mineral content or the fact that flint forms in ancient sea beds. it think you get the smell with the better quality because it is more homogenous and therefor generates more heat when struck, releasing more smell. just a theory.

Chris

I notice a burnt hair smell when using antler, I don't notice a smell when using copper.  Then again, I knap mostly chert.  The guy making the clovis point could have used an antler or bone pressure flaker and make his point all abo. 

Little, have you checked out pecking and grinding?  If you can't find knappable stone, there has got to be some fine grained stone around you that will work.  Bill

Little, if you live near a volcano, take the chanche and begin selling knappable stone on the net 
You have a very unlimited resource nearby, you're very lucky!
There should be a large amount of obsidian near the volcano, which is, in some aspects, better than flint for a novice knapper. The most important of these aspects is that obsidian has not limestone inside, and so you can practice a lot and knap with confidence.
Flint is more easily found along the shores, be them sea or river's, and I've found it a bit more hard to knap than obsidian, especially when it is time to retouch the blade.
Have a look around, and good hunting!
For a better amusement, I suggest to use the net as your least resource! Try the wild way first 

Bill: when your antler smells of burnt hair, it happens while you use it for indirect percussion? Because I notice that smell every time I work bone and antler, regardless the tool I'm using (stone or iron). What do you mean with "using copper"? Melting it? Or using to knap flint?
Because, when I forge, I can sniff another very distinctive smell, a mix between burning wood coal and a metallic one, which is, I think, the iron when it turn white for the heat.
But I did not sniff nothing when I used to melt bronze; neither when copper melted, nor when tin did. Instead, I noticed a changement in the flame's colour when the two metals mixed toghether.

Greetings,
Mauro.

Bill Skinner wrote on Dec 16^th, 2010 at 7:55pm:



Bill, you're getting that smell when using antler because it and hair are same thing on a molecular level. all antler is is super concentrated hair on steroids! and the reason it smells like it's burning is the heat friction you generate when you strike it against super tough flint.

oh, and little, just because you live near a volcano doesn't mean there is knappable stone around. obsidian, dacite, and others are volcanic glasses, but they form deep under ground between shifting tectonic plates and are usually pushed up in and around moutain ranges. actual volcanos generally release little more than pumice and ash.