(at around 39 mins) When hunting for the mutant creature in the woods, none of the members of Stargate Command are wearing their team badges. However, in the next shot Carter, Mitchell and Teal'c are wearing them.
O'Neill's cabin has always been referred to as in Minnesota, yet one sheriff's vehicle had a Colorado license plate.
O'Neill's cabin has always been referred to as in Minnesota, yet the area map that Sam reviews with the search team is labeled at the bottom as National Lakes Area / Colorado / United States of America.
General Landry claims to be going bird watching for the Fulvous Whistling Duck. Unfortunately, that duck is native to Mexico, South America, the West Indies, and Africa, not Minnesota. However, some have been seen all over North America, including the area round the Great Lakes and Southern Canada. Its rarity would make all the more interesting for a bird watcher.
General Landry states that it was most likely a grizzly or something. He should know that grizzly bears are not native to Minnesota. In fact, in the past, grizzlies have been found over much of North America, from Mexico to Alaska.
General Landry and Lt. Colonel Mitchell go hunting for the "grizzly" and they take shotguns that are clearly loaded with target or dove/quail loads, which would be very ineffective against a large animal. They should be using either 00 buckshot or slugs if shotguns are the only firearms they have at the cabin. As they are both highly experienced military veterans they would both know this.
The teams sent to backup SG1 (Teal'c and Vala) are SG3 and SG25 as stated by Carter in the briefing room. When Landry tells Mitchell of the situation, he refers to the support teams as SG3 and SG5.
While in an area "where a mysterious monster devours all humanoids," Lt. Colonel Mitchell goes out for a run without any weapons.