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Start Over You searched for: Place Puerto Rico Remove constraint Place: Puerto Rico Resource Type Line data Remove constraint Resource Type: Line data Subject Shields (Geology) Remove constraint Subject: Shields (Geology)

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2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This line shapefile contains lines with labels and tags for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. In add... Geological Survey (U.S.).