While .38spl might be better than nothing, you should strongly consider stepping up to at least .357mag, and possibly more if you're in grizzly country. .38spl is a bit anemic even against humans, let alone angry megafauna.
I have a Smith & Wesson 329PD (.44mag) that is very light and handy, but unfortunately it's light to the point of discomfort shooting full loads. When I need to go lightweight I'll carry it, but if I'm hunting I instead carry a model 57---a heavy steel gun makes even hot (.41mag) loads tame. I use Lasercast 215gr LSWC bullets loaded to 1.58" COL over 21gr H110 with a large pistol magnum primer; it produces little to no leading and groups rather well even out to 100yds. (Remember, when working up a load with H110 never go more than 3% below max lest you have squib problems!)
Besides the magnum revolver rounds, other good options are 10mm auto (full house 10mm is somewhat less powerful than .41mag or .44mag, but more than .357mag) or---bear with me (no pun intended)---12ga. A 12ga shotgun loaded with heavy slugs is delivering a much larger projectile with substantially greater energy, and will most likely afford you better follow-up shots and carry more ammo than a big revolver. In fact, a Mossberg "cruiser" style 5xx and a S&W X-frame (.500s&w mag) weigh basically the same when fully loaded, and the shotgun is carrying more ammo. As an added benefit, the Mossberg is a lot cheaper and can likely be used for other purposes as well.
It's prudent to bring bear spray along as well.