Montana State Historic Preservation Office. 2013. Response letter for Black Butte copper project area Meagher County Montana. Report prepared for Tintina Resources Inc. December 2013. 1 page.
Tetra Tech. 2013. A cultural resource inventory 970 acres in the Black Butte Copper project area Meagher County Montana. Report prepared for Tintina Resources Inc. January 2013. 15 pages. Appendix A-site forms.
Tetra Tech. 2012. Pedestrian inventory and testing for national register eligibility at site 24 ME 163 in the Black Butte copper project area Meagher County Montana. Report prepared for Tintina Resources Inc. December 2012. 12 pages.
