Sources & stewardship
Keeping the registers in view.
A review plan for 50 states, starting with older snapshots and limited coverage.
Retrieval tells you when a source was obtained. An edition or publication date describes the source. A measurement date belongs to an individual tree and is retained only when the source supplies it. None of these dates establishes a tree’s current condition or visiting access.
This queue was established October 12, 2026. Planned review dates are targets; they do not claim a new source check. Review outcomes begin as pending. We review a small batch at a time and retain limitations when a newer register is unavailable.
Share a dated correction through the existing email workflow →State source review tracker.
| State & source | Snapshot evidence | Review plan | Last completed review |
|---|---|---|---|
| Alaska | UAF historical account · first published 2003 · republished 2010 · limited coverage Retrieved: October 11, 2026 | First priority Limited historical account; seek a current official register and confirm program status. Target: | Pending — no new review recorded |
| Arizona | DFFM 2023 champion roster · retrieved October 11, 2026 · dated snapshot Retrieved: October 11, 2026 | First priority 2023 snapshot; revisit the previously inaccessible newer annual report and reconcile additions. Target: | Pending — no new review recorded |
| Hawaiʻi | 2024 national register · measured 2016–2017 · limited coverage Retrieved: October 11, 2026 | First priority Limited national coverage; check for a fuller state register and newer national edition. Target: | Pending — no new review recorded |
| Idaho | University of Idaho June 13, 2019 register · retrieved October 11, 2026 Retrieved: October 11, 2026 | First priority 2019 register; look for a newer official edition. Target: | Pending — no new review recorded |
| Louisiana | LFA older register · page labeled 2021 · retrieved October 10, 2026 Retrieved: October 10, 2026 | First priority Page labeled 2021; confirm whether the roster has been replaced. Target: | Pending — no new review recorded |
| Maine | 2020 edition · retrieved October 6, 2026 Retrieved: October 6, 2026 | First priority 2020 edition; check the state program for a replacement. Target: | Pending — no new review recorded |
| Mississippi | 2024 national register · CSV supplied October 11, 2026 · limited coverage Supplied: October 11, 2026 | First priority One national-register record; seek state coverage and resolve the preserved CSV/PDF height discrepancy. Target: | Pending — no new review recorded |
| Nevada | Nevada Division of Forestry 2023 register · retrieved October 11, 2026 · program on hiatus Retrieved: October 11, 2026 | First priority 2023 register and program hiatus; check for a replacement and program status. Target: | Pending — no new review recorded |
| New Mexico | Forestry Division April 14, 2020 database · retrieved October 10, 2026 Retrieved: October 10, 2026 | First priority 2020 database; check for a newer published register. Target: | Pending — no new review recorded |
| Alabama | AFC 2025 edition · retrieved October 8, 2026 Retrieved: October 8, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Arkansas | Arkansas Forestry register · retrieved October 9, 2026 · edition not stated Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| California | Cal Poly live database · retrieved October 11, 2026 · edition not stated Retrieved: October 11, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Colorado | CTC 2026 workbooks · retrieved October 10, 2026 Retrieved: October 10, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Connecticut | Retrieved October 6, 2026 · edition not stated Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Delaware | October 6, 2026 GIS snapshot · five-point rule from 2019 Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Florida | Florida Forest Service register · retrieved October 8, 2026 Retrieved: October 8, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Georgia | GFC register · retrieved October 7, 2026 · edition not stated Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Illinois | Illinois Extension register · retrieved October 8, 2026 Retrieved: October 8, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Indiana | Indiana DNR current list · retrieved October 8, 2026 · edition not stated Retrieved: October 8, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Iowa | Iowa DNR current map · retrieved October 9, 2026 Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Kansas | Kansas Forest Service register · retrieved October 9, 2026 · edition not stated Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Kentucky | Kentucky Forestry register · retrieved October 7, 2026 · edition not stated Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Maryland | Retrieved October 6, 2026 · live register snapshot Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Massachusetts | May 2026 edition Retrieval date: Not documented | Routine Retrieval date undocumented; recover provenance before the next refresh. Target: | Pending — no new review recorded |
| Michigan | MBS July 14, 2026 sheet · score-based leaders · retrieved October 9, 2026 Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Minnesota | Minnesota DNR current champions · retrieved October 9, 2026 Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Missouri | MDC register · retrieved October 9, 2026 · update year unconfirmed Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Montana | DNRC 2024 register · retrieved October 10, 2026 Retrieved: October 10, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Nebraska | Nebraska Forest Service register · retrieved October 9, 2026 · edition not stated Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| New Hampshire | Retrieved October 6, 2026 · edition not stated Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| New Jersey | Data edited March 19, 2026 · retrieved October 6, 2026 Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| New York | January 31, 2025 edition Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| North Carolina | September 2026 edition · retrieved October 7, 2026 Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| North Dakota | Official StoryMap · published May 27, 2026 · retrieved October 11, 2026 Retrieved: October 11, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Ohio | Complete native and non-native lists · screenshots October 9, 2026 Screenshot capture: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Oklahoma | Oklahoma Forestry Services map · data updated June 10, 2026 · retrieved October 10, 2026 Retrieved: October 10, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Oregon | Oregon registry · retrieved October 10, 2026 · edition not stated Retrieved: October 10, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Pennsylvania | October 2026 extraction · score-based leaders Retrieval date: Not documented | Routine Only extraction month documented; recover the exact date if possible. Target: | Pending — no new review recorded |
| Rhode Island | March 24, 2026 edition Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| South Carolina | Clemson database · retrieved October 7, 2026 Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| South Dakota | DANR online register · retrieved October 11, 2026 · edition not stated Retrieved: October 11, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Tennessee | UT current list · retrieved October 7, 2026 · edition not stated Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Texas | Texas A&M Forest Service registry · retrieved October 9, 2026 Retrieved: October 9, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Utah | UCFC Big Tree Directory · retrieved October 11, 2026 · individual measurement years Retrieved: October 11, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Vermont | Retrieved October 6, 2026 · edition not stated Retrieved: October 6, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Virginia | Retrieved October 7, 2026 · live register snapshot Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Washington | Washington registry · retrieved October 10, 2026 · edition not stated Retrieved: October 10, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| West Virginia | 2025 workbooks · highest published scores · retrieved October 7, 2026 Retrieved: October 7, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |
| Wisconsin | DNR champion map · retrieved October 9, 2026 · program on hold Retrieved: October 9, 2026 | Routine Program on hold; check status without assuming the register is current. Target: | Pending — no new review recorded |
| Wyoming | Wyoming State Forestry register · retrieved October 11, 2026 · edition not stated Retrieved: October 11, 2026 | Routine Check for a replacement edition or changes to the published register. Target: | Pending — no new review recorded |