Bellair Dome (Discarded)

Location

Northwestern corner of Crawford County

References

Mylius 1927

Description

Mylius (1927) gave the name Bellair Dome to an irregular uplifted area comprising several domes and intervening saddles that covered an area of 6 square miles (15 km²). The Bellair Dome was part of the uplift interpreted by Mylius as the larger Bellair-Champaign Uplift. Mylius was severely handicapped in attempting to map subsurface structure in east-central Illinois. The only well records available were drilling logs of doubtful quality, and the sandstones indicated on those logs are lenticular. Newer structure maps, based on far more reliable data from the area, do not show a structural high where Mylius mapped the Bellair Dome. The name Bellair Dome should not be used.