Malvado sits at the edge of a complex network of draws and canyons where the high desert plateau begins its descent toward the Rio Grande basin. The landscape is defined by the massive drainage of Lozier Canyon, which serves as the central artery for numerous tributaries including Thurston Canyon, Meyers Canyon, and Sevenmile Canyon. This map reveals a region largely defined by its drainage patterns rather than dense settlement, though a sparse network of roads provides access to this isolated portion of the Trans-Pecos. Notable travel routes such as Big Lozier Rd, White Rd, and Cinco De Mayo Rd trace the high ground between deep cuts like Jones Draw and Palma Canyon. The eastern boundary of the map follows the line between Terrell and Val Verde Counties, cutting through Pumpville Canyon as the terrain shifts toward the lower canyons.
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This is the sole edition of this map. No revisions or reprints were ever made.
1943 · Malvado
USGS Topo · 1:62,500
1943 · Langtry
USGS Topo · 1:62,500
1944 · Malvado
USGS Topo · 1:62,500
1954 · Sonora
USGS Topo · 1:250,000
1958 · Sonora
USGS Topo · 1:250,000
1958 · Del Rio
USGS Topo · 1:250,000
1964 · Del Rio
USGS Topo · 1:250,000
1979 · Cook Creek North
USGS Topo · 1:24,000
1979 · Lozier Canyon North
USGS Topo · 1:24,000
1979 · Cook Creek South
USGS Topo · 1:24,000