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Appalachian Inventory & Monitoring Network (APHN)
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Arctic Inventory & Monitoring Network (ARCN)
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Central Alaska Inventory & Monitoring Network (CAKN)
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Chihuahuan Desert Inventory & Monitoring Network (CHDN)
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Cumberland Piedmont Inventory & Monitoring Network (CUPN)
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Eastern Rivers and Mountains Inventory & Monitoring Network (ERMN)
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Great Lakes Inventory & Monitoring Network (GLKN)
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Greater Yellowstone Inventory & Monitoring Network (GRYN)
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Gulf Coast Inventory & Monitoring Network (GULN)
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Heartland Inventory & Monitoring Network (HTLN)
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Klamath Inventory & Monitoring Network (KLMN)
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Mediterranean Coast Inventory & Monitoring Network (MEDN)
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Mid-Atlantic Inventory & Monitoring Network (MIDN)
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Mojave Desert Inventory & Monitoring Network (MOJN)
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National Capital Region Inventory & Monitoring Network (NCRN)
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North Coast and Cascades Inventory & Monitoring Network (NCCN)
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Northeast Coastal and Barrier Inventory & Monitoring Network (NCBN)
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Northeast Temperate Inventory & Monitoring Network (NETN)
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Northern Colorado Plateau Inventory & Monitoring Network (NCPN)
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Northern Great Plains Inventory & Monitoring Network (NGPN)
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Pacific Island Inventory & Monitoring Network (PACN)
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Rocky Mountain Inventory & Monitoring Network (ROMN)
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San Francisco Bay Area Inventory & Monitoring Network (SFAN)
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Sierra Nevada Inventory & Monitoring Network (SIEN)
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Sonoran Desert Inventory & Monitoring Network (SODN)
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South Florida/Caribbean Inventory & Monitoring Network (SFCN)
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Southeast Alaska Inventory & Monitoring Network (SEAN)
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Southeast Coast Inventory & Monitoring Network (SECN)
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Southern Colorado Plateau Inventory & Monitoring Network (SCPN)
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Southern Plains Inventory & Monitoring Network (SOPN)
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Southwest Alaska Inventory & Monitoring Network (SWAN)
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Upper Columbia Basin Inventory & Monitoring Network (UCBN)