
Craig Mountain towers over the southeastern edge of the Grande Ronde Valley, creating a sharp topographical divide between the agricultural lowlands and the elevated timbered slopes. In the 1960s, the lower valley floor shows a complex transportation network where the Union Pacific Railroad meets the Oregon of Union Railroad at Union Junction, serving the nearby community of Union. To the northwest, the Ladd Marsh Game Management Area borders the steep ascent into Ladd Canyon, highlighting the importance of wildlife conservation alongside the region's agricultural use. The presence of Hot Lake and numerous springs indicates the thermal activity and water sources that supported early settlement and industrial efforts, such as the Gravel Pit near the mountain's base. Water management is further evidenced by Davis Dam and a Reservoir that harness the flow of Catherine Creek and Pyles Creek for the valley below.
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This is the sole edition of this map. No revisions or reprints were ever made.
1906 · Telocaset
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1955 · Grangeville
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1959 · Grangeville
USGS Topo · 1:250,000
1963 · La Grande SE
USGS Topo · 1:24,000
1965 · Conley
USGS Topo · 1:24,000
1965 · Glass Hill
USGS Topo · 1:24,000
1965 · Tucker Flat
USGS Topo · 1:24,000
1965 · Union
USGS Topo · 1:24,000