The holes in the ground pictured in this image are the result of underground mine subsidence. Subsidence occurs when a mine roof collapses, making a sinkhole on the land surface. These cave-ins endanger human and animal life through the potential . . . — — Map (db m189693) HM
During the 1880s, as Sheridan County was settled and railroads steadily advanced through Wyoming, stagecoach operations changed from long-distance interstate service between railheads to a network of shorter routes connecting rail terminal and . . . — — Map (db m91425) HM
Immigrants working in the mines shaped Sheridan County's rich cultural identity Although the majority of immigrants came from Poland, over 20 nationalities were represented in the Sheridan County mines. Many Polish food dishes, drinks, and . . . — — Map (db m189688) HM
Pass Post Office was established alongside the stage road in 1888 by Thurston W. Akins on his homestead on Twin Creek, five and a half miles northwest of Ohlman and three quarters of a mile south of the Wyoming-Montana line. The post office served . . . — — Map (db m91426) HM
Thin black lines indicate changes in relevance. Between each pair of lines entries are ordered geographically but all have the same relevance.
* Inflectional forms of words are their plurals, singulars, and possessives as well as gramatical tenses and similar variations.
