Bertram Chain of Lakes
Monticello · Twin Cities (exurban)
Managing organization: Minnesota Off-Road Cyclists (MORC). General trail map/conditions: https://www.morcmtb.org/map. MORC-maintained singletrack at Bertram Chain of Lakes Regional Park, outside the core Twin Cities metro. Mileage figures below are from third-party trail listings, not MORC's own page, and need verification.
Trail systems
Bertram Chain of Lakes
Official Wright County trail map (2019) names 15 distinct singletrack segments totaling 14.25 miles. IMPORTANT: the official map does not publish difficulty ratings for any segment or for the system as a whole. A prior version of this record incorrectly stated the system was "IMBA green-rated," based on Trailforks commentary rather than the official source -- that claim has been removed. Trailforks (non-official, supporting-tier) does rate most segments green-to-blue on its own site if a difficulty estimate is needed for UI purposes, but that should be sourced/labeled as Trailforks own rating, not the county's.
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