Now that the Park Service has made bear proof containers a requirement in a growing number of management units, I'm wondering what practical options people are finding to deal with this - especially for group travel. I'm bringing a group up to float the Noatak River next summer - a four week trip without re-supply - and we would need 40 or more of those little black plastic units. (as I said above, "practical" is one of the criteria; the other is affordable). The Park can't guarantee they'll have some of their larger, metal barrels for us so I'm wondering where I can find them. I've heard some haz-mat handlers have them - if you have information on a specific source in either the Fairbanks or Anchorage area, I'd love to hear from you.