A Notice of Location is posted at one of the claim markers (fld-001, fld-002; the photo was re-read for this check). It names Valar Atomics Inc as locator of the 'RW 453' Lode Mining Claim in the NW and NE quarters of Section 28, T14S R11E, Salt Lake Principal Meridian, Carbon County, located on the 12th (handwritten) of September 2026. Section 28 lies two sections (about two miles) south of Section 16, which the state approved leasing to Valar, in the same township. A fresh query of BLM's not-closed mining-claim layer on 29 September 2026 still shows only 10 open claims in Carbon County, none named RW or Valar; the nearest, the BLACK RIFLE placer (UT106782094), is about 9.4 km south-east of Section 16 (mine-002). That absence is expected for now: federal rules allow 90 days after location to record a claim with BLM (dir-005), and Utah law requires a copy of the notice to be recorded with the county recorder within 30 days of posting, about 12 October 2026 for RW 453 (mine-026, dir-004). The number 453 suggests a series, but one notice does not show how many claims exist. Section 16 itself is state trust land, which federal mining claims cannot cover (mine-021, mine-034); county parcel records show part of Section 28 is federal (dir-002). The notice does not name a mineral; the only mineral occurrences on record nearby are gravel pits and carbon dioxide (dir-003, disc-003). Other sources of stakes exist nearby: easements and a Guard lease on Section 16 (csite-003), Valar's own site surveys allowed under the lease (mine-015), and PacifiCorp's pending transmission line, which crosses sections 19, 29, 30, 34 and 35 of the township (mine-049). BLM's rights-of-way layer shows Valar's three pending cases unchanged (Green River, Beehive, and UTUT106833224, which BLM lists as a pending distribution line with no location; mine-006). Of the 7,139 Utah claims created in the 12 months to 29 September 2026, 77 still had no legal description on BLM's layer, so new claims can take time to appear.

• Photo of the Notice of Location posted at the RW 453 location monument (resident fieldwork, 2026-09) resident fieldwork “Valar Atomics Inc”
• BLM Natl MLRS Mining Claims - Not Closed (feature layer; envelope query around Carbon County) (Bureau of Land Management (MLRS)) primary filing
• BLM Natl MLRS Rights of Way (feature layer; query by customer name) (Bureau of Land Management (MLRS)) primary filing “Green River Gigasite Small Modular Reactor/Data Center”
• 43 U.S.C. 1744: Recordation of mining claims (Office of the Law Revision Counsel, U.S. House) primary government “within ninety days after the date of location of such claim”
• Utah Code 40-1-4: Copy of location notice to be recorded (Utah State Legislature) primary government “Within 30 days after the date of posting the location notice upon the claim”
• 30 U.S.C. 612: Unpatented mining claims (Office of the Law Revision Counsel, U.S. House) primary government “for any purposes other than prospecting, mining or processing operations”