Highway grades in sections across Colorado. Contains detailed data for state highways, including grades from the Colorado Department of Transportation (CDOT).

Charitable organizations’ expenses from the previous and current tax year as reported to the IRS with Form 990EZ, provided by Colorado Department of State (CDOS) since 2011.

Highway curvatures in sections across Colorado. Contains detailed data for state highways, including curvature from the Colorado Department of Transportation (CDOT).

Types, numbers, acreage, and expenses of conservation easements held by charitable organizations as reported to the IRS in annual filings using Form 990, provided by the Colorado Department of State (CDOS) since 2011.

Road attributes including number of lanes, surface type, roughness factor, etc. from the Colorado Department of Transportation (CDOT).

Name, employer identification number, type and location, employee, mission statement, voting members, and volunteer counts for charitable organizations as filed with the IRS using Form 990, provided by the Colorado Department of State (CDOS) since 2011.