Houston 1950/1953 Planimetric (ver. 1)
PDF (18.5 MB)
USGS - Historic Quads
Houston 1956/1969 (ver. 1)
PDF (20.0 MB)
Houston 1956/1963 (ver. 1)
PDF (15.3 MB)
Houston 1975/1977
PDF (17.6 MB)
Houston 1975/1977 (ver. 2)
PDF (21.0 MB)