Editing Basin, Montana (section)

=== Individual mines ===
Almost opposite the Hope-Katy complex on the south side of the Boulder River in Basin was the Katy Extension Mine on the north side. It produced ore from part of the Hope-Katy lode that had been displaced about {{convert|800|ft|m}} to the north by [[fault (geology)|faulting]].<ref name=roby/> Other mines within {{convert|2|mi|km|0}} of Basin included the Lotta, {{convert|1|mi|km|1}} west of town along the route of Interstate 15; the Basin Bell (Latsch), about {{convert|1.5|mi|km|1}} north of town along Basin Creek; the Boulder, {{convert|1.5|mi|km|1}} northeast of Basin on the south slope of Pole Mountain; the Mantle and South Mantle, about {{convert|1.5|mi|km|1}} north of town along Cataract Creek; and the Obelisk, {{convert|1.5|mi|km|1}} east of town near the road that later became Interstate 15.<ref name=roby/>