Prototype·Built by Concourse for Arizona State Historic Preservation Office
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Arizona State Historic Preservation Office
State Parks Building · 1100 W Washington St · Phoenix, AZ 85007 · shpo@azstateparks.gov
Prototype letterhead — generated by SHOPP
March 10, 2026
NPS — Grand Canyon NP
Attn: contact58@example.gov
RE: Section 106 Consultation, Transmission line upgrade — Coconino Co. Supplemental
SHPO File: PRJ-2026058 · Coconino County, AZ
Received: 3/10/2026 · Deadline: 4/9/2026

Dear contact58@example.gov:

The Arizona State Historic Preservation Office (SHPO) has reviewed your transmission line upgrade submission for the above-referenced undertaking pursuant to Section 106 of the National Historic Preservation Act and its implementing regulations at 36 CFR Part 800.

Project description. SYNTHETIC demonstration record. Transmission line upgrade submitted by NPS — Grand Canyon NP.

Area of Potential Effects (APE). The APE includes a polygon of approximately 103.44 km² centered at 33.2076°, -110.8317° in Coconino County, Arizona.

Federal nexus. The APE intersects the following surface management jurisdictions: State Trust Land (State); Bureau of Land Mgmt. (BLM); Tonto N.F (USFS).

Flood hazard. The APE intersects FEMA flood zone(s) D.

Identified historic properties. No NRHP-listed properties were identified within the APE based on the submitted documentation and our current geospatial data.

ADOT historic / scenic route(s). Globe to Lordsburg Highway; Quartzsite to Wickenburg to Phoenix to Globe to Show Low to Springerville; Tucson to Oracle Junction to Globe Highway and Show Low to Holbrook; Winkelman to Superior; Copper Corridor Scenic Road East.

Determination. Based on the foregoing, SHPO concurs with a finding of NO ADVERSE EFFECT pursuant to 36 CFR 800.5.

This determination is non-final until concurrence is received from all consulting parties. Should the scope of the undertaking change, please resubmit for re-review per 36 CFR 800.13.

Sincerely,

J. Begay
reviewer · Arizona SHPO
This letter was auto-drafted by SHOPP using the unified GIS layer set and the project’s submitted polygon. Final review and signature by the assigned reviewer is required before issuance.