Seis Pros, Inc., Billings, MT No description specified. 1-3 (3 Records) Documents Archaeological Monitor of Seis Pros Road Upgrading, Mesa County, Colorado (1984) Archaeological Survey for Eight Seis Pros Heliportable Lines in the Baxter Pass Area (1984) Archeological Survey of Seis Pros, Inc.'s Test Line, San Juan County, Utah (1986)