Avra Valley Land Subsidence Feature The Arva Valley land subsidence feature is in located in Pima & Pinal Counties. Land Subsidence Maps 2010-May to 2023-APR 2021-APR to 2023-APR 2022-APR to 2023-APR 2010-MAY to 2024-APR 2022-APR to 2024-APR 2023-APR to 2024-APR 2010-MAR to 2025-MAR 2023-MAR to 2025-MAR 2024-MAR to 2025-MAR 2010-MAY to 2026-MAR 2024-APR to 2026-MAR 2025-MAR to 2026-MAR Land Subsidence Rate Maps 2023-APR to 2024-APR 2025-MAR to 2026-MAR
