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Committee advances plan for co‑occurrence mapping to set land‑conservation priorities in Tamworth and Sandwich
Summary
Members outlined a five‑step approach to co‑occurrence mapping — agreeing categories to include, inventorying available data layers, setting weights/scores, building layers, and pilot testing on three candidate properties — and assigned tasks to gather spreadsheets and summaries before the next meeting.
Committee members used the July 21 informal meeting to clarify a stepwise approach for co‑occurrence mapping that will guide prioritization of conservation efforts across Tamworth and Sandwich. The minutes record five steps: determine which categories and subcategories to include, identify which categories already have mapping data layers, develop weighting and scoring among categories, start building data layers, and apply the emerging system to two potential Tamworth properties and one in Sandwich where landowners have discussed easements. Ned Beecher summarized the planned workflow in the draft minutes: "We had discussed taking the final categories & beginning to…"
The group also discussed simplifying category hierarchies to keep the assessment manageable and considering an overarching priority that would fast‑track shoreland protection. One procedural concept discussed was using a flowchart or decision matrix so that projects meeting high‑priority criteria (for example, significant water frontage) could be advanced with only cursory documentation of secondary values. Members agreed to collect and share the spreadsheet and background data needed to begin building local layers.
