Spinnerbait Fishing on John Martin Reservoir
John Martin Reservoir · Colorado · West
John Martin Reservoir is a large, scenic impoundment located in Bent County, Colorado, featuring numerous coves, submerged structure, and rocky shorelines that hold largemouth and smallmouth bass. The reservoir's elevation of 3,630 feet and varied terrain create diverse habitat zones that support consistent bass populations throughout the year. This high plains reservoir is popular with regional anglers for its combination of accessible fishing and good catch rates.
A wire-arm lure with one or two rotating blades and a skirted jig head. The blades produce flash and vibration that triggers reaction strikes from bass that may not be actively feeding. Exceptional in low-visibility water, around grass edges, over submerged structure, and during cloudy or windy conditions.
Spinnerbait Setup for John Martin Reservoir
| Rod | 7'–7'3" medium-heavy casting rod, moderate-fast action |
| Reel | 6.4:1–7.1:1 baitcaster |
| Line | 15–17 lb fluorocarbon or 30 lb braid |
| Weight | 3/8–3/4 oz (lighter in shallow, heavier for deeper retrieves) |
Seasonal Tactics on John Martin Reservoir
Lake: Spring brings aggressive feeding as bass move to shallow coves and spawning areas near main lake creek channels. Crankbaits, spinnerbaits, and topwater lures produce well as water temperatures warm into the 50s and 60s.
Spinnerbait: Best season for spinnerbaits. Slow-roll a 1/2 oz through shallow grass and over submerged timber in pre-spawn.
Lake: Summer bass retreat to deeper structure, main lake points, and rocky ledges where cooler water provides relief. Offshore fishing with drop shots, Carolina rigs, and deep-diving crankbaits near the dam and creek channels becomes most effective.
Spinnerbait: Slow-roll deep along grass edges and main lake points at first light. Night fishing with black spinnerbait is excellent.
Lake: Fall migration patterns push bass into mid-depth zones and along the main creek channel where baitfish congregate. Shad-pattern crankbaits, swimbaits, and soft plastics work well as bass feed heavily before winter.
Spinnerbait: Match shad patterns — white/chartreuse with willow blades. Cover water fast along shoreline transitions.
Lake: Winter bass slow considerably but remain catchable near deeper holes and the main channel. Slow presentations with jigging spoons, drop shots, and small soft plastics near structure produce the most consistent results in cold water.
Spinnerbait: Slow-roll a heavy (3/4 oz) spinnerbait along steep banks and points at the slowest possible retrieve.
Best Conditions
Stained to muddy water, wind, overcast skies, grass edges, spring pre-spawn, post-cold-front recovery, shallow flats
Trailer hook is not optional in open water — bass swipe at spinnerbaits and miss the main hook constantly. Add a #4 trailer hook always.
More Techniques for John Martin Reservoir
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