(IA-77-12) in Des Moines, Polk County, IA. IA28 (63rd St.) N. 1.5 miles from jct with I235 exit 4 in Des Moines, E. (turns N.) on US6 0.8 miles, E. on Urbandale Av. 0.5 miles to the house on the S. side of the road at 4948 Urbandale Av. (4-29-04, N41° 37.315', W93° 41.241')