The simple answer is No
Unless you trade for a Golem, it is unobtainable. However, its pre-evolution Graveler is available on Victory Road (rock smash), and in the Magma Hideout. You may then evolve this Graveler into Golem by trading it. However, you may catch Rhyhorn in the Safari Zone and evolve it into Rhydon. Rhydon, like Golem, is a slow Rock/Ground type with good attack and defense, and they share a Base Stat Total of 485.
Hope this helps
