A field technician is mapping a site feature with a high‐accuracy GPS unit.
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Detailed site mapping uses a combination of field‐based GPS data, previously recorded site information, and publicly available GIS data.
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We create Area of Potential Effects for clients based on project design elements and extent, archaeological resources, and assessors parcels.
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We can leverage a variety of public sources of information to create a regional context.
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We have the tools to manage large datasets. We are building a database of buried site
sensitivity which requires the ability to view and update soil polygons and related codes and components for most of California.
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We use geostatistical techniques to interpolate expected percentages of obsidian sources across a landscape based on observed percentages at specific locations.
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We use interpolation to identify areas of greater relative densities (“hotness”) for various resources within a site.
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GIS gives us the ability to create temporal overlays. This example shows how we identified an historic hotel near the project corridor based on a General Land Office Plat and an
historic topographic map.
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Here we are using metabolic‐cost modeling to demonstrate the central location of a study area relative to expected travel paths.
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Here we are modeling prehistoric landscapes in relation to known site locations.
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The Caltrans Cultural Resources Database (CCRD) is an example of a sophisticated program for managing projects, resources, documents, and site records, which includes a linked GIS component.
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We have created tools for web‐based collaboration, review, and tracking.
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Here we are using 3D tools to demonstrate the dunes and shoreline that were present historically in the area south of Market Street in San Francisco where this project occurred.
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Additionally, we are able to provide tools and interactive data that meet a client’s specifications. Here, point locations in Google Earth can be explored to find photographs and PDF site information for a variety of rock art localities.
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Here is another example where a mapping tool (in this case ArcExplorer) is used to simplify the process of discovering information about a boulder panel, such as description and type,
with photographs.
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Data Collection
- We use standardized data collection techniques to maximize data quality, reliability, and usability.
- We have a variety of mapping-grade GPS units and dedicated field computers to support Far Western field crews.
Mapping
- We can use our collected data to prepare site-specific maps.
- We can integrate a variety of client and public-sourced information for mapping purposes.
Analysis
- We have expert-level analysts to explore spatial and temporal relationship with GIS data.
Data Management
- We are adept at creating usable, manageable database solutions.
Information Presentation and Dissemination
- We are experienced in a variety of methods for simplifying and delivering complex or unwieldy datasets.
