21. Today, the Sod House Ranch is open to the public from 15 August through 15 October. 22. When Lutie visits the settlers as they build their sod house , she is surprised to see Chamberlain. 23. There is also a sod house , ( which is used for a museum ) and a library. 24. The sod house was built by the Brownlie Brothers dates from Iowa's prairie days of the 1830s. 25. The Dowse restoration is only one effort to rescue the sod house from the ravages of time and technological progress. 26. In 1935, the United States Government purchased the Sod House Ranch property to add to an adjacent wildlife refuge. 27. Civilian Conservation Corps crews built a number of stone buildings to house the refuge headquarters near the Sod House site. 28. The Sod House Ranch Historic District is located within the boundaries of the Malheur National Wildlife Refuge in southeastern Oregon. 29. In constructing a sod house , a site had to be chosen that was close to good sources of sod. 30. The most common type of dwelling was the sod house , which later became synonymous with pioneering life on the prairie.