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Historical Markers in Amboy
San Bernardino is the county seat for San Bernardino County
Amboy is in San Bernardino County
San Bernardino County (454) ► ADJACENT TO SAN BERNARDINO COUNTY Los Angeles County (2425) ► La Paz County, Arizona (33) ► Mohave County, Arizona (125) ► Clark County, Nevada (263) ►
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| On National Trails Highway (Route 66) near Amboy Road, on the right when traveling east. |
| On National Trails Highway - Historic Route 66 near Old Amboy Road, on the right when traveling west. |
| On Crater Road 0.5 miles west of National Trails Highway, on the right when traveling west. |
| On Crater Road, on the left when traveling south. |
| On National Trails Highway at Cadiz Road, on the right when traveling west on National Trails Highway. |
| On National Trails Highway east of Old Amboy Road, on the right when traveling west. |
| On Old Amboy Road south of National Trails Highway (County Route 66), on the left when traveling south. |
| On National Trails Highway (Old Route 66) 16.5 miles east of Amboy, CA., on the right when traveling east. |
| On National Trails Highway, on the right when traveling west. |
Nov. 11, 2026