NERDE
District - https://nerde.anl.gov/data/explorer/counties/06049,06089,06093,06105
Modoc - https://nerde.anl.gov/data/explorer/counties/06049
Shasta - https://nerde.anl.gov/data/explorer/counties/06089
Siskiyou - https://nerde.anl.gov/data/explorer/counties/06093
Trinity - https://nerde.anl.gov/data/explorer/counties/06105