Very little exploration has been completed on the property, with virtually none in the past 25 years. During the 1920s, a trail was built on the north side of the West Fork of Texas Creek, which opened the valley to prospecting. The Engineer prospect was among the early discoveries that were made in the 1920s and was staked in 1924 and mapped by Buddington in 1929. This prospect was then further developed with pits, trenches, and adits in the 1930s. An adit approximately 10 m long has been driven on the veining at Engineer.
Mineralization at the Casey Glacier Sphalerite prospect was discovered only recently by Government geologists in the 1990s during reconnaissance mapping and sampling, and since then very little to no exploration work has been done on this prospect.