In Cause and Effect (S5:E18), Picard's Captain's Log states they are charting the Typhon Expanse and the Enterprise-D is "the first Starfleet vessel to chart this unexplored region". This implies it's in one of the more remote regions of Federation space or even outside of the Federation in "International Space" or extremely difficult to navigate to.
Yet the Bozeman was there in the Typhon Expanse but 80-90 years prior to the 24th century. Further, they were only 3 weeks away from their starbase. This is right next door to the Expanse in galactic terms. It seems unlikely in the span of 100 years or however long that starbase has been operational that Starfleet hadn't gone as far as 3 weeks away. (This assumes it took the Bozeman the full 3 weeks to get to the TE and they just got there.)
How can the USS Bozeman be in the Thyphon Expanse when Picard says the Enterprise-D is "the first Starfleet vessel to chart this unexplored region"?