Effigy Mounds National Monument — Federal Adjacency Consultation Overlay (Allamakee + Clayton Counties) (IA)
Tracked preemption from the Iowa overlay bundle.
Overview
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Effective
1949-10-25
Sunset
—
Authority
state
Scope
state:IA
Other Iowa preemptions
Iowa SF 592 (2025) — Statewide Accessory Dwelling Unit By-Right MandateIowa Code §414.1(2) — Short-Term Rental Preemption (Residential Use Classification)Iowa Code §459.310 — Master Matrix CAFO Siting ScorecardIowa Code Ch. 161D — Loess Hills Development and Conservation Authority + AllianceIowa Code §414.28 / §335.30 — Manufactured Home Zoning Parity MandateIowa Code Ch. 303 — State Historical Society / SHPO Review + Local Historic Preservation CommissionsIowa Code §352.6 — Agricultural Area Designation + Right-to-Farm Nuisance ProtectionIowa Code Ch. 455B + 567 IAC 71 — Floodplain Development Approval (DNR Flood Plain Program)
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
OR
parcel.geometrygeographic match- AND
parcel.county_fips∈ {19005,19045}city.in_effigy_mounds_adjacency==True
Preempted fields
2 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require | NPS_NEPA_section_106_consultation | Development directly abutting or within the NPS unit (≈2,526 acres across four units: North Unit, South Unit, Heritage Addition, Sny Magill Unit) is subject to NPS NEPA consultation (federal) and Section 106 consultation through Iowa SHPO under the National Historic Preservation Act. |
redevelopment.adjacent_protected_area_coordination | advisory | usfws_upper_mississippi_refuge_and_iowa_dnr | Effigy Mounds is adjacent to the Upper Mississippi River National Wildlife and Fish Refuge (USFWS), the Driftless Area National Wildlife Refuge (USFWS), Yellow River State Forest (Iowa DNR Forestry Bureau), and Pikes Peak State Park (Iowa DNR State Parks) — projects in this corridor commonly require federal + state coordination beyond county zoning. |
Citation
Authority source
Proclamation No. 2860 (1949, by Pres. Truman) establishing Effigy Mounds National Monument; managed by the National Park Service under 16 U.S.C. §§431–433 (Antiquities Act) and 54 U.S.C. ch. 3201 (NHPA Section 106).
§ 16 U.S.C. §§431–433; 54 U.S.C. §306108 (NHPA §106); Proclamation No. 2860 (1949-10-25)
Research notes
Federal-state interface overlay. Effigy Mounds preserves one of the largest concentrations of prehistoric burial mounds in the United States along the Mississippi River in Allamakee (19005) and Clayton (19045) Counties. The state overlay surface is procedural — Iowa SHPO (Ch. 303) coordinates with NPS on §106 review for state-funded/licensed undertakings, and the DNR coordinates with USFWS on refuge-adjacent projects. Captured here because federal-monument adjacency materially constrains zoning entitlements and discretionary review in NE Iowa, even though no Iowa statute directly preempts local zoning around the monument.