Nyac Airport is a private airport located two miles (3 km) southwest of the central business district of Nyac, in the Bethel Census Area, and 330 miles west of Anchorage, Alaska. A 4,800-foot gravel airstrip (lower strip) accommodates aircraft as large as the Lockheed C-130 Hercules. A 2,700-ft gravel airstrip (upper strip) is also available for light aircraft. Nyac is located in the Kilbuck Mountains of southwestern Alaska, approximately 60 miles east of Bethel. Access during the summer months can be made via chartered flights from Bethel or Aniak.

Since the discovery of placer gold in 1908, more than one-half million ounces
have been produced from the Nyac district. Although no large lode systems have been
identified, gold occurs in hornfelsed volcanic rocks, shear zones, and quartz veins
associated with early Cretaceous granitic rocks that intrude a Jurassic island-arc volcanicsedimentary package. The Nyac District is an excellent example of the Thermal Aureole Gold (TAG)
model described by Wall (1999). TAG deposits include numerous world-class and other
large plutonic-hosted gold systems around the world.

https://web.archive.org/web/20020921035201/http://www.calistacorp.com/land_pdfs/NYAC_PRO.PDF